CVE-2023-6277

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 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

1.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 78.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2023-11-24 18:20Z2 YR AGO

Last updated

2026-01-22 15:42Z9 MO AGO

Reserved

2023-11-24

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.2

Document digest

3e1ef6c3211a8972d648c83d5c8d57ac7c80ac9fbf756572175079d1aaed1b8a

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-6277vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2251311https://bugzilla.redhat.com/show_bug.cgi?id=2251311issue-trackingx_refsource_REDHAT
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/issues/614
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/merge_requests/545
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WJIN6DTSL3VODZUGWEUXLEL5DR53EZMV/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y7ZGN2MZXJ6E57W3L4YBM3ZPAU3T7T5C/
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240119-0002/
• support.apple.comhttps://support.apple.com/kb/HT214119
• support.apple.comhttps://support.apple.com/kb/HT214123
• support.apple.comhttps://support.apple.com/kb/HT214122
• support.apple.comhttps://support.apple.com/kb/HT214117
• support.apple.comhttps://support.apple.com/kb/HT214118
• support.apple.comhttps://support.apple.com/kb/HT214116
• support.apple.comhttps://support.apple.com/kb/HT214120
• support.apple.comhttps://support.apple.com/kb/HT214124
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/16
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/23
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/21
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/20
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/17
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/22
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/18
• seclists.orghttp://seclists.org/fulldisclosure/2024/Jul/19