How widely exploitable is this vulnerability?

Exploitability depends on how Jervis is integrated into your Jenkins environment. If attackers can influence or inject ciphertext that Jervis will decrypt and can observe any difference in behavior or errors, the risk of practical exploitation increases significantly.

Does an attacker need authenticated access to Jenkins to exploit this?

Often some level of access is needed—such as the ability to edit job configurations, pipeline libraries, or parameters—but the exact requirement depends on your access controls and how encrypted values are stored or consumed. In weaker setups, lower-privileged users might still reach the vulnerable code paths.

What is the safest general fix pattern?

The most robust fix is to adopt an authenticated encryption scheme, such as AES-GCM or an encrypt-then-MAC construction, and ensure that decryption verifies integrity before acting on any plaintext. All legacy CBC-based code paths should be systematically retired or wrapped with strong integrity checks.

Severity:

HIGH RISK

(7.5)

Use of Unauthenticated AES/CBC Encryption (CWE-327) in Jervis Jenkins Library

CVE-2025-68931

Published:

Jan 13, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Cryptographic Weakness

CWE:

CWE-287;CWE-327

Impact:

Confidentiality and Integrity Compromise of Encrypted Data

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Cryptographic Weakness

CWE:

CWE-287;CWE-327

Impact:

Confidentiality and Integrity Compromise of Encrypted Data

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Use of Unauthenticated AES/CBC Encryption (CWE-327) in Jervis Jenkins Library

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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