CVE-2013-1624

The TLS implementation in the Bouncy Castle Java library before 1.48 and C# library before 1.8 does not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

Published: 2013-02-08 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-1624 is rated Moderate Risk (48.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.97%). Core evidence: EPSS rose +2.58% over the last day, indicating growing attacker interest. Mandatory action: 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-2013-1624

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 2026-06-15 0.39% 2.97% +2.58%
2 2025-10-18 0.53% 0.39% -0.15%
3 2025-03-30 0.53%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-1624

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
4.9 4.9 [email protected]

Weakness enumeration for CVE-2013-1624

GitHub Security Advisory for CVE-2013-1624

GHSA-8353-fgcr-xfhx · Severity: medium · Ecosystem: maven — Improper Input Validation in Bouncy Castle

OS Trackers for CVE-2013-1624

vendor priority summary link
debian low CVE-2013-1624 low priority: Debian including 1 source packages (bouncycastle), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-1624
redhat medium https://access.redhat.com/security/cve/CVE-2013-1624
ubuntu low CVE-2013-1624 low priority: Ubuntu including 1 source packages (bouncycastle), 15 status rows across 15 suites (hardy, lucid, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 7, ignored 6, DNE 1, pending 1. https://ubuntu.com/security/CVE-2013-1624

Affected software / configurations for CVE-2013-1624

Vendor Product Version Raw CPE
bouncycastle bc-java 1.01 cpe:2.3:a:bouncycastle:bc-java:1.01:*:*:*:*:*:*:*
bouncycastle bc-java 1.02 cpe:2.3:a:bouncycastle:bc-java:1.02:*:*:*:*:*:*:*
bouncycastle bc-java 1.03 cpe:2.3:a:bouncycastle:bc-java:1.03:*:*:*:*:*:*:*
bouncycastle bc-java 1.04 cpe:2.3:a:bouncycastle:bc-java:1.04:*:*:*:*:*:*:*
bouncycastle bc-java 1.05 cpe:2.3:a:bouncycastle:bc-java:1.05:*:*:*:*:*:*:*
bouncycastle bc-java 1.06 cpe:2.3:a:bouncycastle:bc-java:1.06:*:*:*:*:*:*:*
bouncycastle bc-java 1.07 cpe:2.3:a:bouncycastle:bc-java:1.07:*:*:*:*:*:*:*
bouncycastle bc-java 1.08 cpe:2.3:a:bouncycastle:bc-java:1.08:*:*:*:*:*:*:*
bouncycastle bc-java 1.09 cpe:2.3:a:bouncycastle:bc-java:1.09:*:*:*:*:*:*:*
bouncycastle bc-java 1.10 cpe:2.3:a:bouncycastle:bc-java:1.10:*:*:*:*:*:*:*
bouncycastle bc-java 1.11 cpe:2.3:a:bouncycastle:bc-java:1.11:*:*:*:*:*:*:*
bouncycastle bc-java 1.12 cpe:2.3:a:bouncycastle:bc-java:1.12:*:*:*:*:*:*:*
bouncycastle bc-java 1.13 cpe:2.3:a:bouncycastle:bc-java:1.13:*:*:*:*:*:*:*
bouncycastle bc-java 1.14 cpe:2.3:a:bouncycastle:bc-java:1.14:*:*:*:*:*:*:*
bouncycastle bc-java 1.15 cpe:2.3:a:bouncycastle:bc-java:1.15:*:*:*:*:*:*:*
bouncycastle bc-java 1.16 cpe:2.3:a:bouncycastle:bc-java:1.16:*:*:*:*:*:*:*
bouncycastle bc-java 1.17 cpe:2.3:a:bouncycastle:bc-java:1.17:*:*:*:*:*:*:*
bouncycastle bc-java 1.18 cpe:2.3:a:bouncycastle:bc-java:1.18:*:*:*:*:*:*:*
bouncycastle bc-java 1.19 cpe:2.3:a:bouncycastle:bc-java:1.19:*:*:*:*:*:*:*
bouncycastle bc-java 1.20 cpe:2.3:a:bouncycastle:bc-java:1.20:*:*:*:*:*:*:*
bouncycastle bc-java 1.21 cpe:2.3:a:bouncycastle:bc-java:1.21:*:*:*:*:*:*:*
bouncycastle bc-java 1.22 cpe:2.3:a:bouncycastle:bc-java:1.22:*:*:*:*:*:*:*
bouncycastle bc-java 1.23 cpe:2.3:a:bouncycastle:bc-java:1.23:*:*:*:*:*:*:*
bouncycastle bc-java 1.24 cpe:2.3:a:bouncycastle:bc-java:1.24:*:*:*:*:*:*:*
bouncycastle bc-java 1.25 cpe:2.3:a:bouncycastle:bc-java:1.25:*:*:*:*:*:*:*
bouncycastle bc-java 1.26 cpe:2.3:a:bouncycastle:bc-java:1.26:*:*:*:*:*:*:*
bouncycastle bc-java 1.27 cpe:2.3:a:bouncycastle:bc-java:1.27:*:*:*:*:*:*:*
bouncycastle bc-java 1.28 cpe:2.3:a:bouncycastle:bc-java:1.28:*:*:*:*:*:*:*
bouncycastle bc-java 1.29 cpe:2.3:a:bouncycastle:bc-java:1.29:*:*:*:*:*:*:*
bouncycastle bc-java 1.30 cpe:2.3:a:bouncycastle:bc-java:1.30:*:*:*:*:*:*:*
bouncycastle bc-java 1.31 cpe:2.3:a:bouncycastle:bc-java:1.31:*:*:*:*:*:*:*
bouncycastle bc-java 1.32 cpe:2.3:a:bouncycastle:bc-java:1.32:*:*:*:*:*:*:*
bouncycastle bc-java 1.33 cpe:2.3:a:bouncycastle:bc-java:1.33:*:*:*:*:*:*:*
bouncycastle bc-java 1.34 cpe:2.3:a:bouncycastle:bc-java:1.34:*:*:*:*:*:*:*
bouncycastle bc-java 1.35 cpe:2.3:a:bouncycastle:bc-java:1.35:*:*:*:*:*:*:*
bouncycastle bc-java 1.36 cpe:2.3:a:bouncycastle:bc-java:1.36:*:*:*:*:*:*:*
bouncycastle bc-java 1.37 cpe:2.3:a:bouncycastle:bc-java:1.37:*:*:*:*:*:*:*
bouncycastle bc-java 1.38 cpe:2.3:a:bouncycastle:bc-java:1.38:*:*:*:*:*:*:*
bouncycastle bc-java 1.39 cpe:2.3:a:bouncycastle:bc-java:1.39:*:*:*:*:*:*:*
bouncycastle bc-java 1.40 cpe:2.3:a:bouncycastle:bc-java:1.40:*:*:*:*:*:*:*
bouncycastle bc-java 1.41 cpe:2.3:a:bouncycastle:bc-java:1.41:*:*:*:*:*:*:*
bouncycastle bc-java 1.42 cpe:2.3:a:bouncycastle:bc-java:1.42:*:*:*:*:*:*:*
bouncycastle bc-java 1.43 cpe:2.3:a:bouncycastle:bc-java:1.43:*:*:*:*:*:*:*
bouncycastle bc-java 1.44 cpe:2.3:a:bouncycastle:bc-java:1.44:*:*:*:*:*:*:*
bouncycastle bc-java 1.45 cpe:2.3:a:bouncycastle:bc-java:1.45:*:*:*:*:*:*:*
bouncycastle bc-java 1.46 cpe:2.3:a:bouncycastle:bc-java:1.46:*:*:*:*:*:*:*
bouncycastle bc-java 1.47 cpe:2.3:a:bouncycastle:bc-java:1.47:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 0.0 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:0.0:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.0 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.0:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.1 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.1:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.2 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.2:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.3 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.3:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.4 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.4:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.5 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.5:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.6.1 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.6.1:*:*:*:*:*:*:*
bouncycastle legion-of-the-bouncy-castle-c\#-cryptography-api 1.7 cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-c\#-cryptography-api:1.7:*:*:*:*:*:*:*

References for CVE-2013-1624

cvelogic Threat Intelligence