How severe is CVE-2023-36321?

CVE-2023-36321 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-2023-36321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36321?

CVE-2023-36321 affects Covesa Dlt-daemon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-36321?

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-2023-36321 published?

CVE-2023-36321 was published on 2023-10-17 and last updated on 2026-06-17.

CVE-2023-36321

CVE-2023-36321 is a high-severity vulnerability in Covesa Dlt-daemon 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Covesa Dlt-daemon
Published: 2023-10-17
Last modified: 2026-06-17

Description

Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.

Frequently asked questions

What is CVE-2023-36321?: Connected Vehicle Systems Alliance (COVESA) up to v2.18.8 was discovered to contain a buffer overflow via the component /shared/dlt_common.c.
How severe is CVE-2023-36321?: CVE-2023-36321 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-2023-36321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36321?: CVE-2023-36321 affects Covesa Dlt-daemon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-36321?: 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-2023-36321 published?: CVE-2023-36321 was published on 2023-10-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:covesa:dlt-daemon:*:*:*:*:*:*:*:*

More vulnerabilities in Covesa Dlt-daemon

CVE-2023-26257 — High (CVSS 7.5): An issue was discovered in the Connected Vehicle Systems Alliance (COVESA; formerly GENIVI) dlt-daemon through 2.18.8.…

All CVEs affecting Covesa Dlt-daemon →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →