CVE-2022-21658

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 70.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2022-01-20 00:00Z4 YR AGO

Last updated

2025-04-22 18:32Z1 YR AGO

Reserved

2021-11-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.3)

CNA CVSS vector

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

Weaknesses

• CWE-363Race Condition Enabling Link FollowingBase
• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.1

Document digest

35e1682c1d662b9f515fb46b75c9db871a2661e6ac51ceb873b145e247ecbe29

• github.comhttps://github.com/rust-lang/rust/security/advisories/GHSA-r9cc-f5pr-p3j2
• github.comhttps://github.com/rust-lang/rust/pull/93110
• github.comhttps://github.com/rust-lang/rust/pull/93110/commits/32ed6e599bb4722efefd78bbc9cd7ec4613cb946
• github.comhttps://github.com/rust-lang/rust/pull/93110/commits/406cc071d6cfdfdb678bf3d83d766851de95abaf
• github.comhttps://github.com/rust-lang/rust/pull/93110/commits/4f0ad1c92ca08da6e8dc17838070975762f59714
• blog.rust-lang.orghttps://blog.rust-lang.org/2022/01/20/cve-2022-21658.html
• lists.fedoraproject.orgFEDORA-2022-1bafa3fc91https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BK32QZLHDC2OVLPKTUHNT2G3VHWHD4LX/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-2c73789458https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C63NH72Q7UHJM5V3IVYRI7LVBGGFQMSQ/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-1b76e3a192https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKGTACKMKAPRDPWPTU26GYWBELIRFF5N/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-06569a0a60https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7JKZDTBMGAWIFJSNWKBMPO5EAKRR4BEW/vendor-advisory
• support.apple.comhttps://support.apple.com/kb/HT213183
• support.apple.comhttps://support.apple.com/kb/HT213182
• support.apple.comhttps://support.apple.com/kb/HT213186
• support.apple.comhttps://support.apple.com/kb/HT213193
• security.gentoo.orgGLSA-202210-09https://security.gentoo.org/glsa/202210-09vendor-advisory