CVE-2026-30077: OpenAirInterface V2.2.0 AMF crashes when it fails to decode the message

Routine

HIGH 7.5REMOTEDOWNGRADE

CVE-2026-30077 is a high-severity flaw (CVSS 7.5) affecting openairinterface. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenAirInterface V2.2.0 AMF crashes when it fails to decode the message. Not all decode failures result in a crash. But the crash is consistent for particular inputs. An example input in hex stream is 80 00 00 0E 00 00 01 00 0F 80 02 02 40 00 58 00 01 88.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-03-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: openairinterface

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

Am I affected?

Timeline

2026-03-30 18:16 UTCPublished CVE record published
2026-06-17 10:32 UTCUpdated Record last modified

openairinterface openairinterface DOWNGRADE

Affected: 2.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.0

1. Check installed version

apt-cache policy openairinterface || rpm -q openairinterface || openairinterface --version

2. No fixed release: DOWNGRADE to a release before 2.2.0 (Debian / Ubuntu)

apt-cache madison openairinterface sudo apt install openairinterface=<VERSION_BEFORE_2.2.0> sudo apt-mark hold openairinterface

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openairinterface sudo dnf downgrade openairinterface-<VERSION_BEFORE_2.2.0> sudo dnf versionlock add openairinterface

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-30077?

openairinterface: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-30077 being exploited?

CVE-2026-30077 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-2026-30077 affect?

CVE-2026-30077 affects openairinterface. Severity is high (CVSS 7.5). OpenAirInterface V2.2.0 AMF crashes when it fails to decode the message. Not all decode failures result in a crash. But the crash is consistent for particular inputs. An example input in hex stream is 80 00 00 0E 00 00 01 00 0F 80 02 02 40

How urgent is CVE-2026-30077?

Priority 36/100. High severity; Remotely exploitable, no login, no user action

References

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