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CVE-2020-9366
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…
Critical9.8EPSS 2.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (4)
- https://www.openwall.com/lists/oss-security/2020/02/06/3 (opens in a new tab)x_refsource_MISCx_transferred
- https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20200225 Re: Re: GNU screen "out of bounds access when setting w_xtermosc after OSC 49" (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-202003-62 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2020-9366)Record last updated .