CVE-2022-40080: acer aspire_e5-475g_firmware Out-of-bounds Write
CVSS: 7.8v3.1HighModified
Published 16-02-2023Last modified 19-03-2025
Vulnerability summary
CVE-2022-40080 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in acer aspire_e5-475g_firmware. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 29% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 16-02-2023PublishedVulnerability first disclosed.
- 19-03-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.36%
Chance of exploitation in the next 30 days
Percentile
29%
Versus all other CVEs
30-day change
0.00 pp
From 0.36% on 21-09-2026
21-09-202621-10-2026
EPSS score0.36%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundVulnerabilities
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Acer1 product
1 vendor · 1 product
References
2 links- acer.comNot Applicable
- github.com/10TG/vulnerabilities/blob/main/Acer/CVE-2022-40080/CVE-2022-40080.mdExploitThird Party Advisory