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CVE Vulnerability Details :
CVE-2026-0821
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-10 Jan, 2026 | 13:02
Updated At-23 Feb, 2026 | 08:27
Rejected At-
▼CVE Numbering Authority (CNA)
quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow

A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue.

Affected Products
Vendor
quickjs-ng
Product
quickjs
Versions
Affected
  • 0.1
  • 0.2
  • 0.3
  • 0.4
  • 0.5
  • 0.6
  • 0.7
  • 0.8
  • 0.9
  • 0.10
  • 0.11.0
Problem Types
TypeCWE IDDescription
CWECWE-122Heap-based Buffer Overflow
CWECWE-119Memory Corruption
Type: CWE
CWE ID: CWE-122
Description: Heap-based Buffer Overflow
Type: CWE
CWE ID: CWE-119
Description: Memory Corruption
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.17.3HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3.07.3HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2.07.5N/A
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 7.3
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Version: 3.0
Base score: 7.3
Base severity: HIGH
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
Version: 2.0
Base score: 7.5
Base severity: N/A
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
mcsky23 (VulDB User)
Timeline
EventDate
Advisory disclosed2026-01-09 00:00:00
VulDB entry created2026-01-09 01:00:00
VulDB entry last update2026-01-16 01:25:36
Event: Advisory disclosed
Date: 2026-01-09 00:00:00
Event: VulDB entry created
Date: 2026-01-09 01:00:00
Event: VulDB entry last update
Date: 2026-01-16 01:25:36
Replaced By

Rejected Reason

References
HyperlinkResource
https://vuldb.com/?id.340355
vdb-entry
technical-description
https://vuldb.com/?ctiid.340355
signature
permissions-required
https://vuldb.com/?submit.731780
third-party-advisory
https://github.com/quickjs-ng/quickjs/issues/1296
issue-tracking
https://github.com/quickjs-ng/quickjs/pull/1299
issue-tracking
https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395
exploit
issue-tracking
https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5
patch
https://github.com/quickjs-ng/quickjs/
product
Hyperlink: https://vuldb.com/?id.340355
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/?ctiid.340355
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/?submit.731780
Resource:
third-party-advisory
Hyperlink: https://github.com/quickjs-ng/quickjs/issues/1296
Resource:
issue-tracking
Hyperlink: https://github.com/quickjs-ng/quickjs/pull/1299
Resource:
issue-tracking
Hyperlink: https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395
Resource:
exploit
issue-tracking
Hyperlink: https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5
Resource:
patch
Hyperlink: https://github.com/quickjs-ng/quickjs/
Resource:
product
▼Authorized 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
Details not found