CVE-2022-4173

highpriority · track · 35EPSS 0.007 · 54 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.73% (54th) EPSS

CVSS 8.8 · high

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-29

A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hsecondary · security@nortonlifelock.comexploitability 1.3 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USprimaryCWE-269US

affected products (5)

Products and version ranges known to be affected.

Avast and AVG Antivirus≤ 20.5 ≤22.9enisa_euvdEU
AVG Technologies Inc. AVG AntiVirus≤ 22.10fstec_bduRU
Avast Software sro Avast Antivirus≤ 22.10fstec_bduRU
avast avast20.5 → 22.9nvdUScpe:2.3:a:avast:avast:*:*:*:*:*:*:*:*
avast avg antivirus20.5 → 22.9nvdUScpe:2.3:a:avast:avg_antivirus:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-2230Avast und AVG Antivirus: Schwachstelle ermöglicht PrivilegieneskalationDeutsch2022-12-05csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Avast und AVG Antivirus ausnutzen, um seine Privilegien zu erhöhen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd cert_bund NVD CVE.org MITRE

published 2022-12-06modified 2026-06-17

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+6670 more

references (6)

External citations — patches, advisories, analysis.

scry

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