CVE-2021-29464

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 72.5% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-04-30 00:00Z5 YR AGO

Last updated

2024-08-03 22:02Z2 YR AGO

Reserved

2021-03-30

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Low (CVSS 3.3)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant
• CWE-787Out-of-bounds WriteBase
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

2e09b5def07ddbe5c1a6b6d9ebe3026995098af68078357dc78ab2d39fc50599

• github.comhttps://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p
• github.comhttps://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54
• lists.fedoraproject.orgFEDORA-2021-0b27f220bdhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-dde4d7d47ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/vendor-advisory
• security.gentoo.orgGLSA-202312-06https://security.gentoo.org/glsa/202312-06vendor-advisory