How severe is CVE-2022-45909?

CVE-2022-45909 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2022-45909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-45909?

CVE-2022-45909 affects Drachtio Drachtio-server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-45909?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-45909 published?

CVE-2022-45909 was published on 2022-11-26 and last updated on 2026-06-17.

CVE-2022-45909

CVE-2022-45909 is a critical-severity vulnerability in Drachtio Drachtio-server with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Drachtio Drachtio-server
Published: 2022-11-26
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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.
How severe is CVE-2022-45909?: CVE-2022-45909 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2022-45909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-45909?: CVE-2022-45909 affects Drachtio Drachtio-server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-45909?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-45909 published?: CVE-2022-45909 was published on 2022-11-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:drachtio:drachtio-server:*:*:*:*:*:*:*:*

More vulnerabilities in Drachtio Drachtio-server

CVE-2022-45474 — Critical (CVSS 9.8): drachtio-server 0.8.18 has a request-handler.cpp event_cb use-after-free for any request.
CVE-2022-47517 — High (CVSS 7.5): An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19. It allows remote attackers to cause…
CVE-2022-47516 — High (CVSS 7.5): An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.20. It allows remote attackers to cause…
CVE-2022-47515 — High (CVSS 7.5): An issue was discovered in drachtio-server before 0.8.20. It allows remote attackers to cause a denial of service…
CVE-2022-45473 — Medium (CVSS 5.5): In drachtio-server 0.8.18, /var/log/drachtio has mode 0777 and drachtio.log has mode 0666.

All CVEs affecting Drachtio Drachtio-server →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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