CVE-2026-31278: supremainc BioStar 2 · Cleartext Transmission
Affects supremainc BioStar 2Source CVE Database V5
Not known to be exploited · CVSS 7.7 High : upgrade to 2.9.12 soon.
Data as of 29 Oct 2026, 10:09 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.9.12
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 14 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade supremainc BioStar 2 to 2.9.12.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| supremaincBioStar 2 | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, restrict access to the vulnerable endpoint and monitor for suspicious GET requests targeting /api/v2/setting/adserversetting. Consider isolating or limiting the use of affected versions to reduce exposure.
Description
An issue in the /api/v2/setting/adserversetting endpoint of Suprema BioStar 2 before 2.9.12 and and BioStar X before 1.0.2 allows attackers to obtain Active Directory service account credentials in cleartext by supplying a crafted GET request.