Secuno
ENNL
Book demo

CVE-2023-2794

Ofono buffer overflow

8.1 HIGHPublic exploitEPSS 1.25%
  1. Published10 Apr 2024

Description

A flaw was found in ofono, an Open Source Telephony on Linux. A stack overflow bug is triggered within the decode_deliver() function during the SMS decoding. It is assumed that the attack scenario is accessible from a compromised modem, a malicious base station, or just SMS. There is a bound check for this memcpy length in decode_submit(), but it was forgotten in decode_deliver().

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Ofono< 2.5
Fedoraproject Fedora39 · 40

Remediation

Fixed in
Ofono≥ 2.5

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-10910910.0
A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability…
CVE-2026-962658.2
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability…
CVE-2026-1089159.9
A vulnerability has been found in Edimax BR-6208AC 1.32. This affects an unknown part…
CVE-2026-1089149.9
A flaw has been found in Edimax BR-6208AC 1.32. Affected by this issue is some unknown…
CVE-2026-1088939.9
A vulnerability was identified in Linksys E1700 up to 1.0.0.4.003. This issue affects…
CVE-2026-10889210.0
A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects…

Frequently asked

Is CVE-2023-2794 being actively exploited?

CVE-2023-2794 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.25%.

How severe is CVE-2023-2794?

CVE-2023-2794 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 1.25% probability of exploitation.

Which products are affected by CVE-2023-2794?

Affected products include Ofono, Fedoraproject Fedora.

How do I fix CVE-2023-2794?

Upgrade affected software to a fixed version, for example Ofono 2.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-2794 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.