PT-2025-27626 · Fastjson+1 · Fastjson+1

Mrwq + 1 · Published 2023-07-27 · Updated 2026-04-02 · CVE-2025-34067

Positive Technologies (AI Summary)

CVSS v4.0

10

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Hikvision Integrated Security Management Platform (affected versions not specified)

Description A critical issue exists in the applyCT component of the Hikvision Integrated Security Management Platform due to the use of a vulnerable version of the Fastjson library. The /bic/ssoService/v1/applyCT API endpoint deserializes untrusted user input, enabling an attacker to trigger Fastjson's auto-type feature and load arbitrary Java classes. By referencing a malicious class through an LDAP URL, an attacker can achieve remote code execution on the underlying system. The Shadowserver Foundation observed exploitation evidence on 2025-02-05 UTC.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Deserialization of Untrusted Data

Weakness Enumeration

CWE-917

CWE-502

Related Identifiers

BDU:2025-08179

CVE-2025-34067

Affected Products

Fastjson

Hikvision Integrated Security Management Platform

References · 25

• 🔥 https://github.com/PeiQi0/PeiQi-WIKI-Book/blob/main/docs/wiki/iot/HIKVISION/HIKVISION%20%E7%BB%BC%E5%90%88%E5%AE%89%E9%98%B2%E7%AE%A1%E7%90%86%E5%B9%B3%E5%8F%B0%20applyCT%20Fastjson%E8%BF%9C%E7%A8%8B%E5%91%BD%E4%BB%A4%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-34067 · Security Note
• https://bdu.fstec.ru/vul/2025-08179 · Security Note
• https://github.com/PeiQi0/PeiQi-WIKI-Book/blob/main/docs/wiki/iot/HIKVISION/HIKVISION%20%20applyCT%20Fastjson.md · Note
• https://twitter.com/fridaysecurity/status/1940933157714645084 · Twitter Post
• https://t.me/pentestingnews/63923 · Telegram Post
• https://twitter.com/ET_Labs/status/2035108350904672360 · Twitter Post
• https://vulncheck.com/advisories/hikvision-hik-central-remote-command-execution · Note
• https://twitter.com/ictframe/status/1942063151660605784 · Twitter Post
• https://twitter.com/ThreatSynop/status/2029245431822110724 · Twitter Post
• https://twitter.com/the_yellow_fall/status/1940952917667930161 · Twitter Post
• https://vulncheck.com/advisories/hikvision-ismp-rce-applyct · Note
• https://twitter.com/The_Cyber_News/status/1941078643846853063 · Twitter Post
• https://twitter.com/Komodosec/status/1954605209776468116 · Twitter Post
• https://twitter.com/grok/status/2039499593402974536 · Twitter Post