How severe is CVE-2019-14697?

CVE-2019-14697 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-14697 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14697?

CVE-2019-14697 affects Musl-libc Musl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14697?

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

When was CVE-2019-14697 published?

CVE-2019-14697 was published on 2019-08-06 and last updated on 2026-06-17.

CVE-2019-14697

CVE-2019-14697 is a critical-severity vulnerability in Musl-libc Musl with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Musl-libc Musl
Published: 2019-08-06
Last modified: 2026-06-17

Description

musl libc through 1.1.23 has an x87 floating-point stack adjustment imbalance, related to the math/i386/ directory. In some cases, use of this library could introduce out-of-bounds writes that are not present in an application's source code.

Frequently asked questions

What is CVE-2019-14697?: musl libc through 1.1.23 has an x87 floating-point stack adjustment imbalance, related to the math/i386/ directory. In some cases, use of this library could introduce out-of-bounds writes that are not present in an application's source code.
How severe is CVE-2019-14697?: CVE-2019-14697 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-14697 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14697?: CVE-2019-14697 affects Musl-libc Musl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14697?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-14697 published?: CVE-2019-14697 was published on 2019-08-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:musl-libc:musl:*:*:*:*:*:*:x86:*

More vulnerabilities in Musl-libc Musl

CVE-2014-3484 — Critical (CVSS 9.8): Multiple stack-based buffer overflows in the __dn_expand function in network/dn_expand.c in musl libc 1.1x before 1.1.2…
CVE-2015-1817 — Critical (CVSS 9.8): Stack-based buffer overflow in the inet_pton function in network/inet_pton.c in musl libc 0.9.15 through 1.0.4, and…
CVE-2025-26519 — High (CVSS 8.1): musl libc 0.9.13 through 1.2.5 before 1.2.6 has an out-of-bounds write vulnerability when an attacker can trigger iconv…
CVE-2017-15650 — High (CVSS 7.5): musl libc before 1.1.17 has a buffer overflow via crafted DNS replies because dns_parse_callback in…
CVE-2020-28928 — Medium (CVSS 5.5): In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source…

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