How severe is CVE-2023-39914?

CVE-2023-39914 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-2023-39914 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39914?

CVE-2023-39914 affects Nlnetlabs Bcder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39914?

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-2023-39914 published?

CVE-2023-39914 was published on 2023-09-13 and last updated on 2026-06-17.

CVE-2023-39914

CVE-2023-39914 is a high-severity vulnerability in Nlnetlabs Bcder 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-232.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-232
Affected product: Nlnetlabs Bcder
Published: 2023-09-13
Last modified: 2026-06-17

Description

NLnet Labs' bcder library up to and including version 0.7.2 panics while decoding certain invalid input data rather than rejecting the data with an error. This can affect both the actual decoding stage as well as accessing content of types that utilized delayed decoding.

Frequently asked questions

What is CVE-2023-39914?: NLnet Labs' bcder library up to and including version 0.7.2 panics while decoding certain invalid input data rather than rejecting the data with an error. This can affect both the actual decoding stage as well as accessing content of types that utilized delayed decoding.
How severe is CVE-2023-39914?: CVE-2023-39914 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-2023-39914 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39914?: CVE-2023-39914 affects Nlnetlabs Bcder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39914?: 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-2023-39914 published?: CVE-2023-39914 was published on 2023-09-13 and last updated on 2026-06-17.

References

https://nlnetlabs.nl/downloads/bcder/CVE-2023-39914.txt

Affected products (1)

cpe:2.3:a:nlnetlabs:bcder:*:*:*:*:*:*:*:*

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