CVE-2022-39249

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

1.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 69.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Important. 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

2022-09-28 00:00Z4 YR AGO

Last updated

2025-04-23 16:55Z1 YR AGO

Reserved

2022-09-02

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass
• CWE-322Key Exchange without Entity AuthenticationBase
• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.1

Document digest

621b89a17cdb6cd530653642bef663c5f390c67489b981539da40f83ebdadfa4

• github.comhttps://github.com/matrix-org/matrix-js-sdk/commit/a587d7c36026fe1fcf93dfff63588abee359be76
• github.comhttps://github.com/matrix-org/matrix-js-sdk/releases/tag/v19.7.0
• github.comhttps://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6263-x97c-c4gg
• github.comhttps://github.com/matrix-org/matrix-spec-proposals/pull/3061
• matrix.orghttps://matrix.org/blog/2022/09/28/upgrade-now-to-address-encryption-vulns-in-matrix-sdks-and-clients
• security.gentoo.orgGLSA-202210-35https://security.gentoo.org/glsa/202210-35vendor-advisory