CVE-2019-20633
CSIRTS triage
- What
- A double-free vulnerability in the another_hunk function allows denial of service when processing a crafted patch file.
- Who is affected
- GNU patch through version 2.7.6 is affected.
- Urgency
- Remediation is routine; CVSS 5.5 is moderate and no active exploitation reported.
- Action
- Upgrade GNU patch to a version after 2.7.6 that includes the fix.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2019-20633
Get an email if CVE-2019-20633 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Moderate exploitation risk1.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 61% of all EPSS-scored CVEs.
Advisory coverage (1)
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2019-20633)