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Fencer Vulns
high 7.8

CVE-2024-7538 json

oFono CUSD AT Command Stack-based Buffer Overflow Code Execution Vulnerability

published 2024-08-05 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-48445

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

oFono CUSD AT Command Stack-based Buffer Overflow Code Execution Vulnerability. This vulnerability allows local attackers to execute arbitrary code on affected installations of oFono. An attacker must first obtain the ability to execute code on the target modem in order to exploit this vulnerability.

The specific flaw exists within the parsing of responses from AT Commands. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-23190.

Patch / fix

  • ofono Debian 14, Debian 13 2.14-1

debian advisories DEBIAN-CVE-2024-7538

  • ofono Ubuntu Pro 16.04 LTS 1.17.bzr6912+16.04.20160314.3-0ubuntu1+esm3
  • ofono Ubuntu Pro 18.04 LTS 1.21-1ubuntu1+esm3
  • ofono Ubuntu Pro 20.04 LTS 1.31-2ubuntu1+esm3
  • ofono Ubuntu Pro 22.04 LTS 1.31-3ubuntu1.2+esm1
  • ofono Ubuntu Pro 24.04 LTS 1.31-3ubuntu3.24.04.2+esm1

ubuntu advisories UBUNTU-CVE-2024-7538

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ofono openSUSE Leap 16.0 2.19-bp160.1.1
  • ofono openSUSE Tumbleweed 2.19-3.1

opensuse advisories openSUSE-SU-2026:21154-1openSUSE-SU-2026:11095-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-7538 updated cvss 7.8

oFono: oFono: Stack-based Buffer Overflow Code Execution

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • oFono oFono

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.