TI-2022-18979 Aliases CVE-2022-40080 GHSA-wjmr-m5q4-p45g

Stack overflow vulnerability in Aspire E5-475G 's BIOS firmware, in the FpGui module, a…

HIGH 69CWE-787Published 2023-02-16 · Updated 2025-03-19

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Stack overflow vulnerability in Aspire E5-475G 's BIOS firmware, in the FpGui module, a second call to GetVariable services allows local attackers to execute arbitrary code in the UEFI DXE phase and gain escalated privileges.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00365 30th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

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
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:acer:aspire_e5-475g_firmware:1.21:::::::*	1.21	Vulnerable	Acer
cpe:2.3:h:acer:aspire_e5-475g:-:::::::*	not specified by NVD	Running on	Acer

cpe:2.3:o:acer:aspire_e5-475g_firmware:1.21:*:*:*:*:*:*:* Versions 1.21 Vulnerable ·Acer
cpe:2.3:h:acer:aspire_e5-475g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Acer

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-40080
2026-10-03 Alias added: GHSA-wjmr-m5q4-p45g

References

Exploit 1

https://github.com/10TG/vulnerabilities/blob/main/Acer/CVE-2022-40080/CVE-2022-40080.md

Other 1

https://acer.com/

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences