CVE-2020-9366
9.8
CRITICAL · CVSS 3.1 · EPSS 2.7% (pctl 86)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.71% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-02-24 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| gnu | screen |
References
- http://www.openwall.com/lists/oss-security/2020/02/25/1
- https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html
- https://security.gentoo.org/glsa/202003-62
- https://www.openwall.com/lists/oss-security/2020/02/06/3
- http://www.openwall.com/lists/oss-security/2020/02/25/1
- https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html
- https://security.gentoo.org/glsa/202003-62
- https://www.openwall.com/lists/oss-security/2020/02/06/3
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