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9.8
Incorrect Bounds Check in Firefox SMS Library Allows Escalation of Privilege
CVE-2026-0111
Summary
A security issue in Firefox's SMS library could allow an attacker to gain elevated privileges on a victim's system without needing to take any action. This could happen if a malicious SMS message is sent to the user's phone. To protect against this, ensure that all Firefox versions are up to date.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| android | All versions | – |
Original title
In ns_GetUserData of ns_SmscbUtilities.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution pr...
Original description
In ns_GetUserData of ns_SmscbUtilities.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Vulnerability type
CWE-787
Out-of-bounds Write
Published: 10 Mar 2026 · Updated: 13 Mar 2026 · First seen: 10 Mar 2026