CVE-2023-29141

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total 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

1.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 67.9% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/A:H

NVD analysis status

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

Red Hat severity

Low. 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

2023-03-31 00:00Z3 YR AGO

Last updated

2025-02-18 16:02Z1 YR AGO

Reserved

2023-03-31

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base

Data version

5.1

Document digest

39f22a8c7d56872055bfc32215f905f6aca45ad74dc0bb86a9d817e92fc418e1

• phabricator.wikimedia.orghttps://phabricator.wikimedia.org/T285159
• gerrit.wikimedia.orghttps://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/core/+/REL1_39/RELEASE-NOTES-1.39
• lists.fedoraproject.orgFEDORA-2023-567baef490https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZGK4NZPIJ5ET2ANRZOUYPCRIB5I64JR7/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-9d6ab5ebf2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ONWHGOBFD6CQAEGOP5O375XAP2N6RUHT/vendor-advisory
• www.debian.orgDSA-5447https://www.debian.org/security/2023/dsa-5447vendor-advisory
• lists.debian.org[debian-lts-announce] 20230822 [SECURITY] [DLA 3540-1] mediawiki security updatehttps://lists.debian.org/debian-lts-announce/2023/08/msg00029.htmlmailing-list