PT-2025-4005 · Cesanta · Cesanta Frozen

Diego Zaffaroni · CVE-2025-0696 · Published 2025-01-27 · Updated 2025-01-27

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Cesanta Frozen versions prior to 1.7

Description A NULL Pointer Dereference vulnerability allows an attacker to induce a crash of the component embedding the library by supplying a maliciously crafted JSON as input.

Recommendations For versions prior to 1.7, update to version 1.7 or later to resolve the issue. As a temporary workaround, consider restricting the input of JSON data to prevent maliciously crafted JSON from being processed by the library.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-0696

Affected Products

Cesanta Frozen

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/0xxx/CVE-2025-0696.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-0696 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-0696 · Security Note
• https://t.me/cvenotify/108665 · Telegram Post
• https://nozominetworks.com/labs/vulnerability-advisories-cve-2025-0696 · Note
• https://t.me/cvedetector/16449 · Telegram Post
• https://github.com/cesanta/frozen · Note
• https://twitter.com/CVEnew/status/1883841585936482759 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1883842203119685680 · Twitter Post