CVE-2020-12647

HIGH
Published May 21, 20206y ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published May 21, 2020 6y ago
Last Modified Jun 17, 2026 1w ago

Description

Unisys ALGOL Compiler 58.1 before 58.1a.15, 59.1 before 59.1a.9, and 60.0 before 60.0a.5 can emit invalid code sequences under rare circumstances related to syntax. The resulting code could, for example, trigger a system fault or adversely affect confidentiality, integrity, and availability.

CVSS Details

Base Score
8.8
Exploitability
2.0
Impact
6.0
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
No Patch Available

Affected Products 3

VendorProductVersionRange
unisysalgol_compiler*≥58.1  –  <58.1a.15
unisysalgol_compiler*≥59.1  –  <59.1a.9
unisysalgol_compiler*≥60.0  –  <60.0a.5

References 1

  • public.support.unisys.com https://public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx?ID=55
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.