zstd has 3 CVEs on record. 3 were published in the last 90 days. The busiest recent month was October 2026 with 3.
CVEs per month
Last 12 months, by publish date
1125/111225/120126/010226/020326/030426/040526/050626/060726/070826/080926/091026/10
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- —
- Publish → KEV
- —
- Last 90 days
- 3 prev 0
Products
- zstd 3
3
Total CVEs
0
Critical
0
CISA KEV
0
Exploited
Worst active — by depth score
zstd vulnerabilities
CVEs affecting zstd, newest first. Open any entry for full detail, references, and exploit status.
3 CVEsRSS
RUSTSEC-2026-0393NoneOut-of-bounds read when training a dictionary from inconsistent sample sizes
Out-of-bounds read when training a dictionary from inconsistent sample sizes
▾ Sunlitzstd · zstdvia OSV
RUSTSEC-2026-0392NoneUninitialized memory exposed by `write::Decoder` on a corrupt legacy frame
Uninitialized memory exposed by `write::Decoder` on a corrupt legacy frame
▾ Sunlitzstd · zstdvia OSV
RUSTSEC-2026-0391NoneData from an abandoned stream leaks into the next stream on a reused context
Data from an abandoned stream leaks into the next stream on a reused context
▾ Sunlitzstd · zstdvia OSV