CVE-2022-45909: drachtio-server before 0.8.19 has a heap-based buffer over-read via a long Request-URI in an INVITE request.

Q: How do I fix CVE-2022-45909?

drachtio-server: upgrade to 0.8.19. Exact commands for each OS are on this page.

Q: Is CVE-2022-45909 being exploited?

CVE-2022-45909 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-2022-45909 affect?

CVE-2022-45909 affects drachtio-server. Severity is critical (CVSS 9.1). drachtio-server before 0.8.19 has a heap-based buffer over-read via a long Request-URI in an INVITE request.

Q: How urgent is CVE-2022-45909?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.1REMOTEUPGRADE

CVE-2022-45909 is a critical-severity flaw (CVSS 9.1) affecting drachtio-server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

drachtio-server before 0.8.19 has a heap-based buffer over-read via a long Request-URI in an INVITE request.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 36%)
CISA exploited list	No
Weakness	CWE-125
Published	2022-11-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: drachtio

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

Am I affected?

Timeline

2022-11-26 03:15 UTCPublished CVE record published
2026-06-17 05:10 UTCUpdated Record last modified

drachtio drachtio-server UPGRADE

Affected: < 0.8.19

Fixed in: 0.8.19

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy drachtio-server || rpm -q drachtio-server || drachtio-server --version

2. UPGRADE to 0.8.19 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade drachtio-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade drachtio-server

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-2022-45909?

drachtio-server: upgrade to 0.8.19. Exact commands for each OS are on this page.

Is CVE-2022-45909 being exploited?

CVE-2022-45909 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-2022-45909 affect?

CVE-2022-45909 affects drachtio-server. Severity is critical (CVSS 9.1). drachtio-server before 0.8.19 has a heap-based buffer over-read via a long Request-URI in an INVITE request.

How urgent is CVE-2022-45909?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-47517 HIGH 7.5 UPGRADE An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19
CVE-2022-47516 HIGH 7.5 UPGRADE An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.20
CVE-2022-47515 HIGH 7.5 UPGRADE An issue was discovered in drachtio-server before 0.8.20
CVE-2022-45474 CRITICAL 9.8 DOWNGRADE drachtio-server 0.8.18 has a request-handler.cpp event_cb use-after-free for any request.
CVE-2022-45473 MEDIUM 5.5 DOWNGRADE In drachtio-server 0.8.18, /var/log/drachtio has mode 0777 and drachtio.log has mode 0666.

References

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