CVE-2023-29491

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.92% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 57.8% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-27.

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

2023-04-14 00:00Z3 YR AGO

Last updated

2025-11-04 18:14Z10 MO AGO

Reserved

2023-04-07

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

0509a18f737307135e67b811f55aeb5016d4252cd03256b747f9cc9057987847

• www.openwall.comhttps://www.openwall.com/lists/oss-security/2023/04/13/4
• ncurses.scripts.mit.eduhttp://ncurses.scripts.mit.edu/?p=ncurses.git%3Ba=commit%3Bh=eb51b1ea1f75a0ec17c9c5937cb28df1e8eeec56
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2023/04/12/5
• www.openwall.com[oss-security] 20230419 Re: ncurses fixes upstreamhttp://www.openwall.com/lists/oss-security/2023/04/19/10mailing-list
• www.openwall.com[oss-security] 20230419 RE: [EXTERNAL] Re: ncurses fixes upstreamhttp://www.openwall.com/lists/oss-security/2023/04/19/11mailing-list
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20230517-0009/
• support.apple.comhttps://support.apple.com/kb/HT213843
• support.apple.comhttps://support.apple.com/kb/HT213844
• support.apple.comhttps://support.apple.com/kb/HT213845
• lists.debian.org[debian-lts-announce] 20231203 [SECURITY] [DLA 3682-1] ncurses security updatehttps://lists.debian.org/debian-lts-announce/2023/12/msg00004.htmlmailing-list
• lists.fedoraproject.orgFEDORA-2024-96090dafafhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT/vendor-advisory
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT/