CVE-2023-6780

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

2.68% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 85.4% of scored records. A rank, not a probability.

NVD base score

5.3 (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:N/A:L

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

2024-01-31 14:08Z2 YR AGO

Last updated

2026-10-14 22:15Z14 DAYS AGO

Reserved

2023-12-13

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

f9a5767cc393fac0cded17ff4415a0f2a30a24f236460e3def9f1ae834079c8c

• packetstormsecurity.comhttp://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
• seclists.orghttp://seclists.org/fulldisclosure/2024/Feb/3
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-6780vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2254396https://bugzilla.redhat.com/show_bug.cgi?id=2254396issue-trackingx_refsource_REDHAT
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/
• security.gentoo.orghttps://security.gentoo.org/glsa/202402-01
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2024/01/30/6
• www.qualys.comhttps://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20250207-0010/
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html