CVE-2026-85432 json
MOOS core-moos through 10.4.0 MOOSDB Message Source Spoofing via Wire Identity
published 2mo ago modified 28d ago also EUVD-2026-70808
- cvss
- 8.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
MOOS core-moos through 10.4.0 fails to validate client identity in MOOSDB message processing, allowing authenticated attackers to attribute writes to other clients by supplying arbitrary source identifiers in serialized messages. Attackers can forge message origins and cancel third-party subscriptions by exploiting the disconnect between authenticated connection identity and wire-supplied source attribution.
Patch / fix
- github.com/themoos/core-moos@26308f0 commit
- github.com/themoos/core-moos#76 pull request
Is CVE-2026-85432 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L |
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/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 |
Affected products
- themoos core-moos
Classification
- Weakness
-
- CWE-290 Authentication Bypass by Spoofing
References
-
github.com
/themoos/core-moos/pull/76
issue-tracking, patch
-
github.com
/themoos/core-moos/commit/26308f0e393f0e80bfa09b275891e776b8dbf522
patch, issue-tracking
-
github.com
/themoos/core-moos
product
-
github.com
/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/MOOSDB.cpp#L748
technical-description, issue-tracking
-
vulncheck.com
/advisories/moos-core-moos-through-10.4.0-moosdb-message-source-spoofing-via-wire-identity
third-party-advisory
Sources
- CVE List CVE-2026-85432
- NVD CVE-2026-85432
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.