Is CVE-2013-10031 in the CISA KEV catalog?

No. CVE-2013-10031 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-10031?

CVE-2013-10031 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2013-10031?

CVE-2013-10031 has an EPSS score of 0.26% (17th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-10031?

Upgrade libplack-middleware-session-perl on debian 11 to 0.21-1 or later.

CVE & CISA-KEV Catalog

CVE-2013-10031

HIGH

7.5

CVSS v3

NVD

Description

Plack-Middleware-Session versions before 0.17 may be vulnerable to HMAC comparison timing attacks

CWE-1254

How to fix

Remediation Available

libplack-middleware-session-perlDebian

Fixed in:0.21-1CVE-2013-10031

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.26%probability of exploitation in 30 days

17thpercentile

Low risk: more likely to be exploited than 17% of all known CVEs.

References

Patch1

github.com

Related Vulnerabilities

Other CWE-1254 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-39308	Medium	6.5	0.6%	-	Fix
CVE-2026-34572	High	8.8	0.5%	-	Fix
CVE-2026-34570	High	8.8	0.5%	-	Fix
CVE-2026-28929	High	7.5	0.4%	-	Fix
CVE-2026-27007	Low	3.3	0.2%	-	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 2025-12-16.