Cyber Resilience

CVE-2026-12554

Published
24 August 2026
Modified
12 October 2026
CVSS Score v4 8.5
Click a component to see what it means
Raw vectorCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/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
EPSS Score 0.0030 21th percentile
Risk Priority 33 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-12554 is a high-severity Use of Unmaintained Third Party Components (CWE-1104) vulnerability in Ciphersecuritylabs (inferred from references). Its CVSS base score is 8.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Supply Chain Compromise (T1195); ranked at the 21th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-22 (Unsupported System Components) and SA-11.1 — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A03:2025 Software Supply Chain Failures

EU & UK References

Vulnerability Data

Potential security vulnerabilities have been identified in HP Easy Start for macOS, versions prior to 2.16.7.260722. These potential vulnerabilities may lead to escalation of privilege. HP is releasing updates to mitigate these potential vulnerabilities.

CWE(s)
CWE-1104

Related Threats

MITRE ATT&CK Enterprise Techniques

T1195 Supply Chain Compromise Initial Access
Adversaries may manipulate products or product delivery mechanisms prior to receipt by a final consumer for the purpose of data or system compromise.
attack.mitre.org →
T1195.001 Compromise Software Dependencies and Development Tools Initial Access
Adversaries may manipulate software dependencies and development tools prior to receipt by a final consumer for the purpose of data or system compromise.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-3031Shared CWE-1104
CVE-2024-11999Shared CWE-1104
CVE-2026-21752Shared CWE-1104
CVE-2026-16634Shared CWE-1104
CVE-2025-20010Shared CWE-1104
CVE-2026-21821Shared CWE-1104
CVE-2025-10220Shared CWE-1104
CVE-2024-35252Shared CWE-1104
CVE-2025-3497Shared CWE-1104
CVE-2026-60368Shared CWE-1104

Affected Assets

Ciphersecuritylabs
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 1 hardening rule · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)
  • V15.1.2

Mitigating Controls (NIST 800-53 r5) AI

SA-22 Unsupported System Components good match

SA-22 triggers when support LAPSES: the weakness arises, then the control removes it — the remediates lifecycle. The pre-adoption slice is not in SA-22's text, so no second verb stands. The or-branch is compatible with removal (a component under alternative support is receiving maintenance), but the discussion's exceptions for isolated and mission-critical systems are SANCTIONED INNOCENT RESIDUE, which defeats `full` under tightened-full; prefer-lower settles the grades-as-ceilings counter-argument.

SA-11.1 partial match

detection-method-derived `finds`: edge only, ungraded, per the 2026-08-12 registry amendment. `owner_ruled_grade` records what the owner said and is NOT the stored grade -- this lane stores no extent.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

GV.RM-04 partial match
blocks

GV.RM-04's high-level risk-response criteria can indirectly discourage unmaintained third-party use via policy, but alone removes none of the concrete supply-chain or maintenance decisions that produce CWE-1104.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.15 Access control partial match
removes
A.5.21 Managing information security in the ICT supply chain partial match
blocks

Periodic validation, certification demands, and life-cycle monitoring of supplier components help surface and replace unmaintained third-party elements before they become exploitable liabilities.

A.8.26 Application security requirements partial match
removes
A.8.27 Secure system architecture and engineering principles partial match
removes
A.8.8 Management of technical vulnerabilities partial match
finds

A maintained asset inventory plus scheduled scanning and patching directly reduces the window during which known vulnerable third-party components remain exploitable.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (higher-evidence rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248521 OL 8 must be a vendor-supported release. blocks CWE-1104

References