How severe is CVE-2022-47515?

CVE-2022-47515 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-47515 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-47515?

CVE-2022-47515 affects Drachtio Drachtio-server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-47515?

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

When was CVE-2022-47515 published?

CVE-2022-47515 was published on 2022-12-18 and last updated on 2026-06-17.

CVE-2022-47515

CVE-2022-47515 is a high-severity vulnerability in Drachtio Drachtio-server with a CVSS 3.x base score of 7.5. 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-170.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-170
Affected product: Drachtio Drachtio-server
Published: 2022-12-18
Last modified: 2026-06-17

Description

An issue was discovered in drachtio-server before 0.8.20. It allows remote attackers to cause a denial of service (daemon crash) via a long message in a TCP request that leads to std::length_error.

Frequently asked questions

What is CVE-2022-47515?: An issue was discovered in drachtio-server before 0.8.20. It allows remote attackers to cause a denial of service (daemon crash) via a long message in a TCP request that leads to std::length_error.
How severe is CVE-2022-47515?: CVE-2022-47515 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-47515 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-47515?: CVE-2022-47515 affects Drachtio Drachtio-server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-47515?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-47515 published?: CVE-2022-47515 was published on 2022-12-18 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-2022-45909 — 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.
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-2022-45473 — Medium (CVSS 5.5): In drachtio-server 0.8.18, /var/log/drachtio has mode 0777 and drachtio.log has mode 0666.

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