Vulnerability in T20 Readers (CVE-2026-27790)
Summary
Vulnerability in T20 Readers (CVE-2026-27790). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Uncaught Exception (CWE-248) in the T20 Readers allows an authenticated and authorized operator to trigger a restart by sending specific requests, resulting in a temporary denial of service. Version of Command Centre affected:
- 9.50 prior to vCR9.50.260616a (distributed in 9.50.1587(MR1))
- 9.40 prior to vCR9.40.260616a (distributed in 9.40.3130(MR3))
- 9.30 prior to vCR9.30.260616a (distributed in 9.30.3983(MR5))
- 9.20 prior to vCR9.20.260616a (distributed in 9.20.4349(MR7))
- all versions of 9.10 and prior.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-27790 has been found in T20 Readers.
Risk of unauthorized operations or information disclosure. CVSS score: 2.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "T20 Readers CVE-2026-27790" on the vendor's site.
CVE-2026-27790 (T20 Readers) — CWE-248 / CVSS v3 2.7
Attack vector: remote (network-reachable) / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-248) exists in T20 Readers.
Check the vendor advisory for the affected versions of T20 Readers.
Severity: Low (CVSS 2.7/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで T20 Readers を使っているサービスとバージョンを洗い出す。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- patch disclosures@gallagher.com
- web nvd.nist.gov
- web github.com