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 N U N N H 7.5 .0408 90.6 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Feb 15 Reserved by mitre Feb 15 Published (CNA: mitre) Oct 14 ENRICHED — CVE-2021-27218. Received CVSS 7.5 and CPE data from NVD.
An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. If g_byte_array_new_take() was called with a buffer of 4GB or more on a 64-bit platform, the length would be truncated modulo 2**32, causing unintended length truncation.
| Date | Event | Detail |
|---|---|---|
| February 15, 2021 | Reserved | Reserved by mitre |
| February 15, 2021 | Published | Published (CNA: mitre) |
| October 14, 2026 | ENRICHED | ENRICHED — CVE-2021-27218. Received CVSS 7.5 and CPE data from NVD. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2021-27218 at cve.org
Weaknesses: CWE-681
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-27218 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.
