CVE-2013-5915

The RSA-CRT implementation in PolarSSL before 1.2.9 does not properly perform Montgomery multiplication, which might allow remote attackers to conduct a timing side-channel attack and retrieve RSA private keys.

Published: 2013-10-04 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-5915 is rated Moderate Risk (40.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.69%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-5915

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 1.29% 0.69% -0.60%
2 2025-03-29 0.69% 1.29% +0.60%
3 2025-03-17 — 0.69% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-5915

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2013-5915

OS Trackers for CVE-2013-5915

vendor priority summary link
gentoo normal CVE-2013-5915: 1 GLSA(s) (201310-10), 1 atom(s) (net-libs/polarssl); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-5915
ubuntu medium CVE-2013-5915 medium priority: Ubuntu including 2 source packages (mbedtls, polarssl), 20 status rows across 13 suites (lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 7, not-affected 6, ignored 5, released 2. https://ubuntu.com/security/CVE-2013-5915

Affected software / configurations for CVE-2013-5915

Vendor Product Version Raw CPE
polarssl polarssl <= 1.2.8 cpe:2.3:a:polarssl:polarssl:*:*:*:*:*:*:*:*
polarssl polarssl 0.10.0 cpe:2.3:a:polarssl:polarssl:0.10.0:*:*:*:*:*:*:*
polarssl polarssl 0.10.1 cpe:2.3:a:polarssl:polarssl:0.10.1:*:*:*:*:*:*:*
polarssl polarssl 0.11.0 cpe:2.3:a:polarssl:polarssl:0.11.0:*:*:*:*:*:*:*
polarssl polarssl 0.11.1 cpe:2.3:a:polarssl:polarssl:0.11.1:*:*:*:*:*:*:*
polarssl polarssl 0.12.0 cpe:2.3:a:polarssl:polarssl:0.12.0:*:*:*:*:*:*:*
polarssl polarssl 0.12.1 cpe:2.3:a:polarssl:polarssl:0.12.1:*:*:*:*:*:*:*
polarssl polarssl 0.13.1 cpe:2.3:a:polarssl:polarssl:0.13.1:*:*:*:*:*:*:*
polarssl polarssl 0.14.0 cpe:2.3:a:polarssl:polarssl:0.14.0:*:*:*:*:*:*:*
polarssl polarssl 0.14.2 cpe:2.3:a:polarssl:polarssl:0.14.2:*:*:*:*:*:*:*
polarssl polarssl 0.14.3 cpe:2.3:a:polarssl:polarssl:0.14.3:*:*:*:*:*:*:*
polarssl polarssl 0.99 cpe:2.3:a:polarssl:polarssl:0.99:pre1:*:*:*:*:*:*
polarssl polarssl 0.99 cpe:2.3:a:polarssl:polarssl:0.99:pre3:*:*:*:*:*:*
polarssl polarssl 0.99 cpe:2.3:a:polarssl:polarssl:0.99:pre4:*:*:*:*:*:*
polarssl polarssl 0.99 cpe:2.3:a:polarssl:polarssl:0.99:pre5:*:*:*:*:*:*
polarssl polarssl 1.0.0 cpe:2.3:a:polarssl:polarssl:1.0.0:*:*:*:*:*:*:*
polarssl polarssl 1.1.0 cpe:2.3:a:polarssl:polarssl:1.1.0:*:*:*:*:*:*:*
polarssl polarssl 1.1.0 cpe:2.3:a:polarssl:polarssl:1.1.0:rc0:*:*:*:*:*:*
polarssl polarssl 1.1.0 cpe:2.3:a:polarssl:polarssl:1.1.0:rc1:*:*:*:*:*:*
polarssl polarssl 1.1.1 cpe:2.3:a:polarssl:polarssl:1.1.1:*:*:*:*:*:*:*
polarssl polarssl 1.1.2 cpe:2.3:a:polarssl:polarssl:1.1.2:*:*:*:*:*:*:*
polarssl polarssl 1.1.3 cpe:2.3:a:polarssl:polarssl:1.1.3:*:*:*:*:*:*:*
polarssl polarssl 1.1.4 cpe:2.3:a:polarssl:polarssl:1.1.4:*:*:*:*:*:*:*
polarssl polarssl 1.1.5 cpe:2.3:a:polarssl:polarssl:1.1.5:*:*:*:*:*:*:*
polarssl polarssl 1.1.6 cpe:2.3:a:polarssl:polarssl:1.1.6:*:*:*:*:*:*:*
polarssl polarssl 1.1.8 cpe:2.3:a:polarssl:polarssl:1.1.8:*:*:*:*:*:*:*
polarssl polarssl 1.2.0 cpe:2.3:a:polarssl:polarssl:1.2.0:*:*:*:*:*:*:*
polarssl polarssl 1.2.1 cpe:2.3:a:polarssl:polarssl:1.2.1:*:*:*:*:*:*:*
polarssl polarssl 1.2.2 cpe:2.3:a:polarssl:polarssl:1.2.2:*:*:*:*:*:*:*
polarssl polarssl 1.2.3 cpe:2.3:a:polarssl:polarssl:1.2.3:*:*:*:*:*:*:*
polarssl polarssl 1.2.4 cpe:2.3:a:polarssl:polarssl:1.2.4:*:*:*:*:*:*:*
polarssl polarssl 1.2.5 cpe:2.3:a:polarssl:polarssl:1.2.5:*:*:*:*:*:*:*
polarssl polarssl 1.2.6 cpe:2.3:a:polarssl:polarssl:1.2.6:*:*:*:*:*:*:*
polarssl polarssl 1.2.7 cpe:2.3:a:polarssl:polarssl:1.2.7:*:*:*:*:*:*:*

References for CVE-2013-5915

cvelogic Threat Intelligence