[NEW] [low] patch: Multiple vulnerabilities allow denial of service
An attacker can exploit multiple vulnerabilities in patch to carry out a denial of service attack.
CSIRTS triage
- What
- Multiple vulnerabilities in patch can be exploited to carry out denial-of-service attacks.
- Who is affected
- Users of the affected patch software.
- Urgency
- Remediation is low urgency as the impact is limited to denial-of-service.
- Action
- Apply the latest updates for the patch software.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2274
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-562880.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-562890.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-56288 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-56289 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownCVE-2026-56289: Loop with Unreachable Exit Condition in GNU patchmsrc
- unknownCVE-2026-56288: NULL Pointer Dereference in GNU patchmsrc
- mediumCVE-2026-56289: GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (singl…nvd
- mediumCVE-2026-56288: GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unif…nvd
Recent advisories for patch
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-88892: OpenPanel is an analytics platform. In all versions (no patched release available at time of p…nvd · 2026-09-10
- highCVE-2026-88861: Capgo (Cap-go/capgo.app) contains an authentication bypass affecting all versions (no patched …nvd · 2026-09-10
- mediumCVE-2026-61915: An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An…nvd · 2026-09-09
- highCVE-2026-86729: WWBN AVideo through commit e01e41ecc (no patched version available) exposes get_api_preauthori…nvd · 2026-09-08
- high[NEU] [hoch] SAP Patch Day September 2026: Mehrere Schwachstellencert-bund · 2026-09-08
- mediumCVE-2026-86512: A vulnerability was identified in java-json-tools json-patch up to 1.13. This affects the func…nvd · 2026-09-08
More from CERT-Bund (BSI) Security Advisories
- medium[UPDATE] [mittel] vim: Mehrere Schwachstellen2026-09-10
- medium[UPDATE] [mittel] ffmpeg: Mehrere Schwachstellen ermöglichen Codeausführung und DoS2026-09-10
- medium[UPDATE] [mittel] Unbound: Mehrere Schwachstellen2026-09-10
- high[UPDATE] [hoch] ffmpeg: Mehrere Schwachstellen2026-09-10
- high[UPDATE] [hoch] Internet Systems Consortium BIND: Mehrere Schwachstellen2026-09-10