CVE-2026-8744: A vulnerability was determined in Open5GS up to 2.7.7

Q: How do I fix CVE-2026-8744?

open5gs: upgrade to newer than 2.7.7. Exact commands for each OS are on this page.

Q: Is CVE-2026-8744 being exploited?

CVE-2026-8744 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-8744 affect?

CVE-2026-8744 affects open5gs. Severity is medium (CVSS 4.3). A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of serv

Q: How urgent is CVE-2026-8744?

Priority 30/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2026-8744 is a medium-severity flaw (CVSS 4.3) affecting open5gs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remedi

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-404
Published	2026-05-17
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: open5gs

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

Am I affected?

Timeline

2026-05-17 10:16 UTCPublished CVE record published
2026-06-17 11:04 UTCUpdated Record last modified

open5gs open5gs UPGRADE

Affected: <= 2.7.7

Fixed in: newer than 2.7.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy open5gs || rpm -q open5gs || open5gs --version

2. UPGRADE to newer than 2.7.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade open5gs

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade open5gs

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-8744?

open5gs: upgrade to newer than 2.7.7. Exact commands for each OS are on this page.

Is CVE-2026-8744 being exploited?

CVE-2026-8744 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-2026-8744 affect?

CVE-2026-8744 affects open5gs. Severity is medium (CVSS 4.3). A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of serv

How urgent is CVE-2026-8744?

Priority 30/100. Public exploit reference

Related CVEs

CVE-2026-8743 MEDIUM 6.3 UPGRADE A vulnerability was found in Open5GS up to 2.7.6
CVE-2026-8187 MEDIUM 5.3 UPGRADE A flaw has been found in Open5GS up to 2.7.7
CVE-2026-8186 MEDIUM 5.3 UPGRADE A vulnerability was detected in Open5GS up to 2.7.7
CVE-2026-8252 MEDIUM 4.3 UPGRADE A vulnerability was determined in Open5GS up to 2.7.7
CVE-2026-8266 MEDIUM 4.3 UPGRADE A vulnerability was detected in Open5GS up to 2.7.7

References

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