CVE-2022-22758

HIGH

8.8

CVSS Score

Published: December 22, 2022 at 12:00 AM UTC

Updated: June 17, 2026 at 04:28 AM UTC

1 product affected across 1 vendorFirefox· also runs on 1 platform

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Severity

HIGH8.8

Exploit prediction

EPSS 0.4%

SSVC

PoC

Description

When clicking on a tel: link, USSD codes, specified after a <code>\*</code> character, would be included in the phone number. On certain phones, or on certain carriers, if the number was dialed this could perform actions on a user's account, similar to a cross-site request forgery attack.<br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 97.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firefox · Mozilla

95%

v < 97

Affected range stops below 97, so it looks safe — our inference, not a vendor statement

Affected range stops below 97.0, so it looks safe — our inference, not a vendor statement

google-android (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Android · Google

95%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Issue TrackingVendor Advisory

Source: [email protected]

https://bugzilla.mozilla.org/show_bug.cgi?id=1728742

Vendor Advisory

Source: [email protected]

https://www.mozilla.org/security/advisories/mfsa2022-04/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-319

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