by Kastro
Paper/Archive/CVE-2021-26937

CVE-2021-26937

mitre — encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash)…

EPSS 9%CVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 95.3.953 × 2019.1No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

reflists.gnu.org/archive/html/screen-devel/2021-02/msg00000.htmlrefopenwall.com/lists/oss-security/2021/02/09/3refftp.gnu.org/gnu/screenrefopenwall.com/lists/oss-security/2021/02/09/8reflists.debian.org/debian-lts-announce/2021/02/msg00031.htmladvisorydebian.org/security/2021/dsa-4861advisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVMadvisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBLadvisorysecurity.gentoo.org/glsa/202105-11refsecurity.netapp.com/advisory/ntap-20250509-0004