CVE-2026-118299
A NVD · · CVE-2026-118299
Admiralty grading (A–F · 1–6)
Source reliability
- A Completely reliable
- B Usually reliable
- C Fairly reliable
- D Not usually reliable
- E Unreliable
- F Cannot be judged
Information credibility
- 1 Confirmed
- 2 Probably true
- 3 Possibly true
- 4 Doubtful
- 5 Improbable
- 6 Cannot be judged
NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.
Key metrics
- CVSS
- 8.8
- EPSS
- 0%
Key insight
The report contains no information on active exploitation, affected sectors, or attacker tactics and does not go beyond the plain CVE description.
Description
Vulnerability CVE-2026-118299 is a heap-based buffer overflow in Microsoft Office Excel. An unauthorized attacker can thereby execute code over the network. The NVD report provides no details on attack vectors, exploitation status, or affected versions. The report contains no indication of active exploitation, proof-of-concept code, or CISA KEV inclusion. Further information on CVSS, patch status, or attacker profiles is not included.
Risk score
- cvss base
- 88.00
- kev bonus
- 0.00
- epss bonus
- 0.00
- poc bonus
- 0.00
- raw before weight
- 88.00
- industry weight
- 1.21
- freshness factor
- 1.00
- exploitability factor
- 1.00
- days old
- 0.00
- vendor mismatch penalty
- 0.00
Path: operational