How severe is CVE-2019-20387?

CVE-2019-20387 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-2019-20387 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20387?

CVE-2019-20387 primarily affects Opensuse Libsolv. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20387?

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-2019-20387 published?

CVE-2019-20387 was published on 2020-01-21 and last updated on 2026-06-17.

CVE-2019-20387

CVE-2019-20387 is a high-severity vulnerability in Opensuse Libsolv 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Opensuse Libsolv
Published: 2020-01-21
Last modified: 2026-06-17

Description

repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.

Frequently asked questions

What is CVE-2019-20387?: repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.
How severe is CVE-2019-20387?: CVE-2019-20387 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-2019-20387 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20387?: CVE-2019-20387 primarily affects Opensuse Libsolv. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20387?: 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-2019-20387 published?: CVE-2019-20387 was published on 2020-01-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

More vulnerabilities in Opensuse Libsolv

CVE-2026-48864 — High (CVSS 7.8): A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled…
CVE-2021-33938 — High (CVSS 7.5): Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows…
CVE-2021-33930 — High (CVSS 7.5): Buffer overflow vulnerability in function pool_installable_whatprovides in src/repo.h in libsolv before 0.7.17 allows…
CVE-2021-33929 — High (CVSS 7.5): Buffer overflow vulnerability in function pool_disabled_solvable in src/repo.h in libsolv before 0.7.17 allows…
CVE-2021-33928 — High (CVSS 7.5): Buffer overflow vulnerability in function pool_installable in src/repo.h in libsolv before 0.7.17 allows attackers to…
CVE-2026-9149 — Medium (CVSS 6.5): A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted…

All CVEs affecting Opensuse Libsolv →

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…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →