Out-of-Bounds Write in Acer (CVE-2022-30426)
Summary
Out-of-bounds write in Acer (CVE-2022-30426). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
There is a stack buffer overflow vulnerability, which could lead to arbitrary code execution in UEFI DXE driver on some Acer products. An attack could exploit this vulnerability to escalate privilege from ring 3 to ring 0, and hijack control flow during UEFI DXE execution. This affects Altos T110 F3 firmware version <= P13 (latest) and AP130 F2 firmware version <= P04 (latest) and Aspire 1600X firmware version <= P11.A3L (latest) and Aspire 1602M firmware version <= P11.A3L (latest) and Aspire 7600U firmware version <= P11.A4 (latest) and Aspire MC605 firmware version <= P11.A4L (latest) and Aspire TC-105 firmware version <= P12.B0L (latest) and Aspire TC-120 firmware version <= P11-A4 (latest) and Aspire U5-620 firmware version <= P11.A1 (latest) and Aspire X1935 firmware version <= P11.A3L (latest) and Aspire X3475 firmware version <= P11.A3L (latest) and Aspire X3995 firmware version <= P11.A3L (latest) and Aspire XC100 firmware version <= P11.B3 (latest) and Aspire XC600 firmware version <= P11.A4 (latest) and Aspire Z3-615 firmware version <= P11.A2L (latest) and Veriton E430G firmware version <= P21.A1 (latest) and Veriton B630_49 firmware version <= AAP02SR (latest) and Veriton E430 firmware version <= P11.A4 (latest) and Veriton M2110G firmware version <= P21.A3 (latest) and Veriton M2120G fir.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2022-30426 has been found in Acer.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Acer CVE-2022-30426" on the vendor's site.
CVE-2022-30426 (Acer) — CWE-787 / CVSS v3 7.8
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Out-of-bounds write (CWE-787) exists in Acer.
Check the vendor advisory for the affected versions of Acer.
Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Acer' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'Acer' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
Acerを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- exploit github.com
- patch acer.com
- web altos.com