Out-of-bounds read in WithSecure Atlant
Priority LOW 18CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Withsecure Atlant with Capricorn engine before 2025-01-20_02 allows a Remote Denial of Service via an out-of-bounds memory read during processing of a document file by the antivirus engine.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0043 37th percentileScored 2026-11-07
Fix Fixed Atlant (WithSecure): Capricorn 2025-01-20_02
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WithSecure | Atlant | before Capricorn 2025-01-20_02 | Capricorn 2025-01-20_02 | Patch available | CNA |
- Atlant VendorWithSecure Affected before Capricorn 2025-01-20_02 Fixed in Capricorn 2025-01-20_02 Patch available CNA
Remediation
- Fix · CNA Atlant (WithSecure) Fixed in Capricorn 2025-01-20_02
Timeline
- 2026-10-02 Threatist record created from CVE-2025-26790
- 2026-10-03 Alias added: GHSA-28x7-ppgv-4277
References
More WithSecure vulnerabilities
- TI-2023-23461 Certain WithSecure products allow Unauthenticated Remote Code Execution via the web… CVSS 3.1CRITICAL 9.8
- TI-2022-17863 Arbitrary file write in F-Secure Policy Manager through 2022-08-10 allows unauthenticated… CVSS 3.1CRITICAL 9.8
- TI-2023-22676 Certain WithSecure products allow a remote crash of a scanning engine via decompression… CVSS 3.1HIGH 7.5
- TI-2023-22675 Certain WithSecure products allow an infinite loop in a scanning engine via unspecified… CVSS 3.1HIGH 7.5
- TI-2023-22674 Certain WithSecure products allow an infinite loop in a scanning engine via unspecified… CVSS 3.1HIGH 7.5
- TI-2023-22673 Certain WithSecure products allow a remote crash of a scanning engine via unpacking of a… CVSS 3.1HIGH 7.5
Sources
- CVE-2025-26790 · CVE Program
- CVE-2025-26790 · NVD
- FIRST EPSS
- GHSA-28x7-ppgv-4277 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences