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CVE-2020-22886

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows...

7.5 HighFix available

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.55%Up 0.9 points since Jul 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Record
CVE-2020-22886
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-120
Updated
2026-11-02
CVE List No score

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Record
CVE-2020-22886
Updated
2026-11-02
EUVDEUVD-2020-15642 No score

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Record
EUVD-2020-15642
Updated
2026-11-03
GitHub AdvisoriesGHSA-vrr5-xpgp-8w3v No score

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows...

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Record
GHSA-vrr5-xpgp-8w3v
Weakness
CWE-120
Updated
2026-11-02
OSV 7.5

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Record
CVE-2020-22886
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-22886 7.5

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Record
DEBIAN-CVE-2020-22886
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-22886 7.5

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Record
UBUNTU-CVE-2020-22886
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
mujs
Debian:12
before 1.0.9-1
1.0.9-1
mujs
Debian:13
before 1.0.9-1
1.0.9-1
mujs
Debian:14
before 1.0.9-1
1.0.9-1

History

History
RecordedChangedSources
affected
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-22886 is a high vulnerability (CVSS 7.5) in Artifex Mujs, published July 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.55%, the 75th percentile. Fixed in mujs 1.0.9-1.

References

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