Is CVE-2017-12836 in the CISA KEV catalog?

No. CVE-2017-12836 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-12836?

CVE-2017-12836 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-12836?

CVE-2017-12836 has an EPSS score of 5.97% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-12836?

Upgrade cvs on debian 11 to 2:1.12.13+real-24 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2017-12836

HIGHEPSS 92th pctl

7.5

CVSS v3

NVD

Description

CVS 1.12.x, when configured to use SSH for remote repositories, might allow remote attackers to execute arbitrary code via a repository URL with a crafted hostname, as demonstrated by "-oProxyCommand=id;localhost:/bar."

How to fix

Remediation Available

cvsDebian

Fixed in:2:1.12.13+real-24CVE-2017-12836

cvsUbuntu

Fixed in:2:1.12.13+real-12ubuntu0.1USN-3399-1

Fixed in:2:1.12.13+real-15ubuntu0.1USN-3399-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

5.97%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Exploit2

Third-Party Advisory5

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.