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CVE-2022-26486

Exploited in the wild. In CISA KEV since 2022‑03‑07. Fixed versions are out.

CVSS 3.19.6CriticalEPSS percentile84th2.4% chance in 30 daysCISA KEVListedsince 2022-03-07, due 2022-03-21
Public exploit: 1 sourceFix5 products4 fixed builds listed below

Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Mozilla FirefoxAffected: ≥ unspecified, < 97.0.2Upgrade to: 97.0.2Affected: ≥ unspecified, < 91.6.1Upgrade to: 91.6.1Stated by: CVE record
  • Mozilla Firefox for AndroidAffected: ≥ unspecified, < 97.3.0Upgrade to: 97.3.0Stated by: CVE record
  • Mozilla ThunderbirdAffected: ≥ unspecified, < 91.6.2Upgrade to: 91.6.2Stated by: CVE record
  • Mozilla FocusAffected: ≥ unspecified, < 97.3.0Upgrade to: 97.3.0Stated by: CVE record
  • Mozilla Firefox FocusAffected: < 97.3.0Upgrade to: 97.3.0Stated by: NVD

Versions as the sources state them. 5 more products have version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

Coverage timeline

0 publishers

  1. Added to CISA KEV catalog

    ·CISA KEV

Sourced from public security reporting — each date is when it was published, not when it happened.

What it is

From the CVE record

An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS84th
Public exploit
CISA KEV
CISA KEV

Listed as exploited in the wild since 2022-03-07.

US federal agencies must remediate by 2022-03-21.

Apply updates per vendor instructions.
Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

2.4% chance of exploitation activity in the next 30 days, which ranks it in the 84th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Attention now

Rising.

Lifecycle

The patch came 122 days before any public exploit.

  1. Patch availablerecord updated
  2. OpenVAS check added
  3. Public exploit / PoCsource: other
  4. Patch availablerecord updated
  5. Publishedweakness classified, att&ck mapped
  6. Added to CISA KEV

Affected products

And 6 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Scored 9.6 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction RequiredA user must click a link, open a file, or perform some action

Scope

  • Scope ChangedThe exploit can affect other components (e.g. sandbox escape, host compromise from VM)

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 8 more references. See all after sign-in

Watch the software you run.

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We'll flag the next CVE, public exploit or patch for Firefox ESR, not every advisory. This one: actively exploited.