01 Record
CVE-2026-27790
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
LowPUBLISHEDCNA: Gallagher
CNA base score2.7 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
02 Description
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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.38% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 32.2% of scored records. A rank, not a probability.
- NVD base score
- 2.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-25.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-07-07 03:49Z3 MO AGO
- Last updated
- 2026-07-07 13:37Z3 MO AGO
- Reserved
- 2026-03-01
- Assigning CNA
- Gallagher
- Record state
- PUBLISHED
- Severity
- Low (CVSS 2.7)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-248Uncaught ExceptionBase
- Data version
- 5.2
- Document digest
- 8afbd48b30a89ee604602f7f23b01e8739165bc3f5b4f08644341677d4d4b5ee
05 Affected products
VendorProductVersionsPlatforms
GallagherT-20 Readers0 to 9.10, 9.50 to < vCR9.50.260616a, 9.40 to < vCR9.40.260616a, 9.30 to < vCR9.30.260616a, 9.20 to < vCR9.20.260616a—
06 References
- security.gallagher.comhttps://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-27790