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01 Record

CVE-2025-34124

Heroes of Might and Magic III .h3m Map File Buffer Overflow

HighPUBLISHEDCNA: VulnCheck
CNA base score8.4 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

02 Description

Heroes of Might and Magic III .h3m Map File Buffer Overflow

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.52% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 43.9% of scored records. A rank, not a probability.
NVD base score
8.4 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
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
2025-07-16 21:08Z1 YR AGO
Last updated
2026-04-07 14:09Z6 MO AGO
Reserved
2025-04-15
Assigning CNA
VulnCheck
Record state
PUBLISHED
Severity
High (CVSS 8.4)
CNA CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weaknesses
  • CWE-20Improper Input ValidationClass
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
  • CWE-121Stack-based Buffer OverflowVariant
Data version
5.2
Document digest
cd4ea04c811753cf5ae145e8413eff6177b0644363767ace2599222c4280c62b

05 Affected products

VendorProductVersionsPlatforms
The 3DO CompanyHeroes of Might and Magic IIIComplete 4.0.0.0, HD Mod 3.808 build 9, Demo 1.0.0.0Windows

06 References