CVE-2023-39742

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

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 27.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2023-08-25 00:00Z3 YR AGO

Last updated

2024-10-02 16:35Z1 YR AGO

Reserved

2023-08-07

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

90c356f58681d93bf674d6d559cddd3c3380266a21f80571f41a5cc10531439c

• sourceforge.nethttps://sourceforge.net/p/giflib/bugs/166/
• gist.github.comhttps://gist.github.com/huanglei3/ec9090096aa92445cf0a8baa8e929084
• lists.fedoraproject.orgFEDORA-2023-1b5f6f4eb2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O4RLSFGPBPR3FMIUJCWPGVIYIU35YGQX/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-6ce92a5bdchttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T5WO6WL2TCGO6T4VKGACDIVSZI74WJAU/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-88f7d670fehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPNBOB65TEA4ZEPLVENI26BY4LEX7TEF/vendor-advisory