Is CVE-2015-0840 in the CISA KEV catalog?

No. CVE-2015-0840 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-0840?

CVE-2015-0840 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-0840?

CVE-2015-0840 has an EPSS score of 1.84% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-0840?

Upgrade dpkg on debian 11 to 1.17.25 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2015-0840

MEDIUMEPSS 76th pctl

4.3

CVSS v2

NVD

Description

The dpkg-source command in Debian dpkg before 1.16.16 and 1.17.x before 1.17.25 allows remote attackers to bypass signature verification via a crafted Debian source control file (.dsc).

CWE-284Improper Access Control

How to fix

Remediation Available

dpkgDebian

Fixed in:1.17.25CVE-2015-0840

dpkgUbuntu

Fixed in:1.17.5ubuntu5.4USN-2566-1

libdpkg-perlUbuntu

Fixed in:1.17.5ubuntu5.4USN-2566-1

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.84%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Patch1

ubuntu.com

Vendor Advisory1

debian.org

Other references2

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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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 2026-05-06.