CVE-2014-2897

Name: CVE-2014-2897
Creator: NVD / NIST
Published: 2020-01-28T16:15:11.93+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.77%

Last modified Jun 17, 2026

CVE-2014-2897 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to have unspecified impact via a crafted HMAC, which triggers an out-of-bounds read.. EPSS estimates a 2.77% chance of exploitation in the next 30 days.

Description

The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to have unspecified impact via a crafted HMAC, which triggers an out-of-bounds read.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.77%

84.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Wolfssl	Wolfssl	>= 2.5.0, < 2.9.4

References

http://seclists.org/oss-sec/2014/q2/126Mailing List, Third Party Advisory
http://seclists.org/oss-sec/2014/q2/130Mailing List, Third Party Advisory
http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.htmlVendor Advisory
http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.htmlVendor Advisory
http://seclists.org/oss-sec/2014/q2/126Mailing List, Third Party Advisory
http://seclists.org/oss-sec/2014/q2/130Mailing List, Third Party Advisory
http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.htmlVendor Advisory
http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.htmlVendor Advisory

Timeline

Published: Jan 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-2897?

How severe is CVE-2014-2897?

CVE-2014-2897 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.77% probability of exploitation in the next 30 days.

How do I fix CVE-2014-2897?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-2897?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST