CVE-2026-0791: ALGO 8180 IP Audio Alerter SIP INVITE Replaces Stack-based Buffer Overflow Remote Code Execution Vulnerability

This month

CRITICAL 9.8REMOTEMITIGATE

CVE-2026-0791 is a critical-severity flaw (CVSS 9.8) affecting 8180 ip audio alerter firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ALGO 8180 IP Audio Alerter SIP INVITE Replaces Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the Replaces header of SIP INVITE requests. The issue results from the lack of proper validat

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2026-01-23
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: algosolutions

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-23 04:16 UTCPublished CVE record published
2026-06-17 10:11 UTCUpdated Record last modified

algosolutions 8180 ip audio alerter firmware MITIGATE

Affected: 5.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.5

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-0791?

8180 ip audio alerter firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-0791 being exploited?

CVE-2026-0791 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-0791 affect?

CVE-2026-0791 affects 8180 ip audio alerter firmware. Severity is critical (CVSS 9.8). ALGO 8180 IP Audio Alerter SIP INVITE Replaces Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter dev

How urgent is CVE-2026-0791?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-0796 HIGH 8.8 MITIGATE ALGO 8180 IP Audio Alerter Web UI Command Injection Remote Code Execution Vulnerability
CVE-2026-0795 HIGH 8.8 MITIGATE ALGO 8180 IP Audio Alerter Web UI Command Injection Remote Code Execution Vulnerability
CVE-2026-0794 CRITICAL 9.8 MITIGATE ALGO 8180 IP Audio Alerter SIP Use-After-Free Remote Code Execution Vulnerability
CVE-2026-0793 CRITICAL 9.8 MITIGATE ALGO 8180 IP Audio Alerter InformaCast Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-0792 CRITICAL 9.8 MITIGATE ALGO 8180 IP Audio Alerter SIP INVITE Alert-Info Stack-based Buffer Overflow Remote Code Execution Vulnerabili

References

← Back to latest CVEs