CVE-2019-6472
CVE-2019-6472 is a medium-severity vulnerability in Isc Kea with a CVSS 3.x base score of 6.5. 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-617.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 3.3
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-617
- Affected product: Isc Kea
- Published:
- Last modified:
Description
A packet containing a malformed DUID can cause the Kea DHCPv6 server process (kea-dhcp6) to exit due to an assertion failure. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.
Frequently asked questions
- What is CVE-2019-6472?
- A packet containing a malformed DUID can cause the Kea DHCPv6 server process (kea-dhcp6) to exit due to an assertion failure. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.
- How severe is CVE-2019-6472?
- CVE-2019-6472 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2019-6472 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-6472?
- CVE-2019-6472 primarily affects Isc Kea. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2019-6472?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2019-6472 published?
- CVE-2019-6472 was published on 2019-10-16 and last updated on 2026-06-17.
References
Affected products (3)
- cpe:2.3:a:isc:kea:*:*:*:*:*:*:*:*
- cpe:2.3:a:isc:kea:1.6.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:isc:kea:1.6.0:beta2:*:*:*:*:*:*
More vulnerabilities in Isc Kea
- CVE-2015-8373 — Medium (CVSS 6.8): The kea-dhcp4 and kea-dhcp6 servers 0.9.2 and 1.0.0-beta in ISC Kea, when certain debugging settings are used, allow…
- CVE-2018-5739 — Medium (CVSS 6.5): An extension to hooks capabilities which debuted in Kea 1.4.0 introduced a memory leak for operators who are using…
- CVE-2019-6474 — Medium (CVSS 5.7): A missing check on incoming client requests can be exploited to cause a situation where the Kea server's lease storage…
Other CWE-617 (Reachable Assertion) vulnerabilities
- CVE-2020-3615 — Critical (CVSS 9.8): Valid deauth/disassoc frames is dropped in case if RMF is enabled and some rouge peer keep on sending rogue…
- CVE-2019-9795 — Critical (CVSS 9.8): A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by…
- CVE-2026-31739 — High (CVSS 8.8): In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - Add missing CRYPTO_ALG_ASYNC The…
- CVE-2020-12417 — High (CVSS 8.8): Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in…
- CVE-2020-6623 — High (CVSS 8.8): stb stb_truetype.h through 1.22 has an assertion failure in stbtt__cff_get_index.
- CVE-2020-6619 — High (CVSS 8.8): stb stb_truetype.h through 1.22 has an assertion failure in stbtt__buf_seek.