CVE-2026-77645Disclosure

LOWCVSS 9.2 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data.

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0.0/ 10 priority

Sources & remediation

Other references

https://www.ptc.com/en/support/article/CS474826

Weakness type (CWE)

CWE-20CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

2 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
Peaked 1d ago at 1 mentions (2026-08-21); latest day: 1
2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets3 URLs

By indicator

Full discourse2 posts

arthur aires@arthurair_es9d
@breno_css, Bruno Milreu and I found CVE-2026-77645, a fully unauthenticated RCE caused by insecure Java deserialization, allowing arbitrary command execution. Always fun to find a classic Java deserialization bug :) https://www.cve.org/CVERecord?id=CVE-2026-77645
1323773.2K
4.0K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds46d
Disclosure
CVE-2026-77645 Critical RCE in PTC Windchill and FlexPLM via Untrusted Data Deserializa... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-77645 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3
Post summary
A new critical remote code execution vulnerability (CVE-2026-77645) affecting PTC Windchill and FlexPLM via untrusted data deserialization has been disclosed.
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4.1K followersView on X

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