Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N R U N N H 6.5 .0274 85.9 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Apr 8 Reserved by mitre Apr 8 Published (CNA: mitre) Oct 14 ENRICHED — CVE-2017-18258. Received CVSS 6.5 and CPE data from NVD.
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
| Date | Event | Detail |
|---|---|---|
| April 8, 2018 | Reserved | Reserved by mitre |
| April 8, 2018 | Published | Published (CNA: mitre) |
| October 14, 2026 | ENRICHED | ENRICHED — CVE-2017-18258. Received CVSS 6.5 and CPE data from NVD. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2017-18258 at cve.org
Weaknesses: CWE-770
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2017-18258 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
