Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2026-2903

Summary
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
Published At-22 Feb, 2026 | 00:32
Updated At-26 Feb, 2026 | 16:21
Rejected At-
Credits

skvadrik re2c ast.cc check_and_merge_special_rules null pointer dereference

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulDB
Assigner Org ID:1af790b2-7ee1-4545-860a-a788eba489b5
Published At:22 Feb, 2026 | 00:32
Updated At:26 Feb, 2026 | 16:21
Rejected At:
â–¼CVE Numbering Authority (CNA)
skvadrik re2c ast.cc check_and_merge_special_rules null pointer dereference

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.

Affected Products
Vendor
skvadrik
Product
re2c
CPEs
  • cpe:2.3:a:re2c:re2c:*:*:*:*:*:*:*:*
Versions
Affected
  • 4.0
  • 4.1
  • 4.2
  • 4.3
  • 4.4
Problem Types
TypeCWE IDDescription
CWECWE-476NULL Pointer Dereference
CWECWE-404Denial of Service
Type: CWE
CWE ID: CWE-476
Description: NULL Pointer Dereference
Type: CWE
CWE ID: CWE-404
Description: Denial of Service
Metrics
VersionBase scoreBase severityVector
4.04.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.13.3LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.03.3LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
2.01.7N/A
AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 3.3
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
Version: 3.0
Base score: 3.3
Base severity: LOW
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
Version: 2.0
Base score: 1.7
Base severity: N/A
Vector:
AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
Oneafter (VulDB User)
Timeline
EventDate
Advisory disclosed2026-02-20 00:00:00
VulDB entry created2026-02-20 01:00:00
VulDB entry last update2026-02-20 21:07:45
Event: Advisory disclosed
Date: 2026-02-20 00:00:00
Event: VulDB entry created
Date: 2026-02-20 01:00:00
Event: VulDB entry last update
Date: 2026-02-20 21:07:45
Replaced By

Rejected Reason

References
HyperlinkResource
https://vuldb.com/?id.347210
vdb-entry
technical-description
https://vuldb.com/?ctiid.347210
signature
permissions-required
https://vuldb.com/?submit.755030
third-party-advisory
https://github.com/skvadrik/re2c/issues/571
issue-tracking
https://github.com/skvadrik/re2c/issues/571#issuecomment-3837675101
issue-tracking
https://github.com/oneafter/0202/blob/main/re/repro
exploit
https://github.com/skvadrik/re2c/commit/febeb977936f9519a25d9fbd10ff8256358cdb97
patch
https://github.com/skvadrik/re2c/
product
Hyperlink: https://vuldb.com/?id.347210
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/?ctiid.347210
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/?submit.755030
Resource:
third-party-advisory
Hyperlink: https://github.com/skvadrik/re2c/issues/571
Resource:
issue-tracking
Hyperlink: https://github.com/skvadrik/re2c/issues/571#issuecomment-3837675101
Resource:
issue-tracking
Hyperlink: https://github.com/oneafter/0202/blob/main/re/repro
Resource:
exploit
Hyperlink: https://github.com/skvadrik/re2c/commit/febeb977936f9519a25d9fbd10ff8256358cdb97
Resource:
patch
Hyperlink: https://github.com/skvadrik/re2c/
Resource:
product
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cna@vuldb.com
Published At:22 Feb, 2026 | 01:16
Updated At:23 Feb, 2026 | 18:13

A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.04.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.13.3LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Secondary2.01.7LOW
AV:L/AC:L/Au:S/C:N/I:N/A:P
Type: Secondary
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 3.3
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Type: Secondary
Version: 2.0
Base score: 1.7
Base severity: LOW
Vector:
AV:L/AC:L/Au:S/C:N/I:N/A:P
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-404Primarycna@vuldb.com
CWE-476Primarycna@vuldb.com
CWE ID: CWE-404
Type: Primary
Source: cna@vuldb.com
CWE ID: CWE-476
Type: Primary
Source: cna@vuldb.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/oneafter/0202/blob/main/re/reprocna@vuldb.com
N/A
https://github.com/skvadrik/re2c/cna@vuldb.com
N/A
https://github.com/skvadrik/re2c/commit/febeb977936f9519a25d9fbd10ff8256358cdb97cna@vuldb.com
N/A
https://github.com/skvadrik/re2c/issues/571cna@vuldb.com
N/A
https://github.com/skvadrik/re2c/issues/571#issuecomment-3837675101cna@vuldb.com
N/A
https://vuldb.com/?ctiid.347210cna@vuldb.com
N/A
https://vuldb.com/?id.347210cna@vuldb.com
N/A
https://vuldb.com/?submit.755030cna@vuldb.com
N/A
Hyperlink: https://github.com/oneafter/0202/blob/main/re/repro
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://github.com/skvadrik/re2c/
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://github.com/skvadrik/re2c/commit/febeb977936f9519a25d9fbd10ff8256358cdb97
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://github.com/skvadrik/re2c/issues/571
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://github.com/skvadrik/re2c/issues/571#issuecomment-3837675101
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/?ctiid.347210
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/?id.347210
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/?submit.755030
Source: cna@vuldb.com
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

105Records found

CVE-2025-15418
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-4.8||MEDIUM
EPSS-0.02% / 5.91%
||
7 Day CHG~0.00%
Published-01 Jan, 2026 | 23:32
Updated-23 Feb, 2026 | 09:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Open5GS Bearer QoS IE Length types.c ogs_gtp2_parse_bearer_qos denial of service

A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function ogs_gtp2_parse_bearer_qos in the library lib/gtp/v2/types.c of the component Bearer QoS IE Length Handler. Performing a manipulation results in denial of service. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is named 4e913d21f2c032b187815f063dbab5ebe65fe83a. To fix this issue, it is recommended to deploy a patch.

Action-Not Available
Vendor-open5gsn/a
Product-open5gsOpen5GS
CWE ID-CWE-404
Improper Resource Shutdown or Release
CVE-2025-15571
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-4.8||MEDIUM
EPSS-0.02% / 4.83%
||
7 Day CHG+0.01%
Published-10 Feb, 2026 | 14:32
Updated-27 Feb, 2026 | 16:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ckolivas lrzip stream.c ucompthread null pointer dereference

A security vulnerability has been detected in ckolivas lrzip up to 0.651. This vulnerability affects the function ucompthread of the file stream.c. Such manipulation leads to null pointer dereference. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Action-Not Available
Vendor-ckolivasckolivas
Product-lrziplrzip
CWE ID-CWE-404
Improper Resource Shutdown or Release
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2025-15417
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-4.8||MEDIUM
EPSS-0.02% / 5.91%
||
7 Day CHG~0.00%
Published-01 Jan, 2026 | 23:02
Updated-23 Feb, 2026 | 09:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Open5GS GTPv2-C F-TEID s11-handler.c sgwc_s11_handle_create_session_request denial of service

A vulnerability was identified in Open5GS up to 2.7.6. Affected is the function sgwc_s11_handle_create_session_request of the file src/sgwc/s11-handler.c of the component GTPv2-C F-TEID Handler. Such manipulation leads to denial of service. The attack must be carried out locally. The exploit is publicly available and might be used. The name of the patch is 465273d13ba5d47b274c38c9d1b07f04859178a1. A patch should be applied to remediate this issue.

Action-Not Available
Vendor-open5gsn/a
Product-open5gsOpen5GS
CWE ID-CWE-404
Improper Resource Shutdown or Release
CVE-2024-5198
Matching Score-4
Assigner-OpenVPN Inc.
ShareView Details
Matching Score-4
Assigner-OpenVPN Inc.
CVSS Score-3.3||LOW
EPSS-0.10% / 27.01%
||
7 Day CHG+0.06%
Published-15 Jan, 2025 | 12:57
Updated-10 Jun, 2025 | 16:12
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULL pointer dereference leading to a system halt.

Action-Not Available
Vendor-openvpnOpenVPN
Product-ovpn-dco-winovpn-dcoOpenVPN-GUI
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2024-6063
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-4.8||MEDIUM
EPSS-0.04% / 10.86%
||
7 Day CHG~0.00%
Published-17 Jun, 2024 | 20:31
Updated-25 Sep, 2024 | 16:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
GPAC MP4Box dmx_m2ts.c m2tsdmx_on_event null pointer dereference

A vulnerability was found in GPAC 2.5-DEV-rev228-g11067ea92-master. It has been classified as problematic. This affects the function m2tsdmx_on_event of the file src/filters/dmx_m2ts.c of the component MP4Box. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The patch is named 8767ed0a77c4b02287db3723e92c2169f67c85d5. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-268791.

Action-Not Available
Vendor-n/aGPAC
Product-gpacGPACgpac
CWE ID-CWE-476
NULL Pointer Dereference
  • Previous
  • 1
  • 2
  • 3
  • Next
Details not found