How severe is CVE-2019-25048?

CVE-2019-25048 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2019-25048 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-25048?

CVE-2019-25048 affects Openbsd Libressl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-25048?

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-2019-25048 published?

CVE-2019-25048 was published on 2021-07-01 and last updated on 2026-06-17.

CVE-2019-25048

CVE-2019-25048 is a high-severity vulnerability in Openbsd Libressl with a CVSS 3.x base score of 7.1. 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: High (CVSS 3.x base score 7.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Openbsd Libressl
Published: 2021-07-01
Last modified: 2026-06-17

Description

LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do_print_ex (called from asn1_item_print_ctx and ASN1_item_print).

Frequently asked questions

What is CVE-2019-25048?: LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do_print_ex (called from asn1_item_print_ctx and ASN1_item_print).
How severe is CVE-2019-25048?: CVE-2019-25048 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2019-25048 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-25048?: CVE-2019-25048 affects Openbsd Libressl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-25048?: 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-2019-25048 published?: CVE-2019-25048 was published on 2021-07-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*

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