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CVE-2019-19204An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as…
- 7.5HighCVSS base score
- 6.9%Exploitation in 30 daysEPSS · top 5.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read.
Timeline
ID reserved
By mitre
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 6.9% · top 5.8% of all CVEs (13 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
References8
- https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/kkos/oniguruma/issues/162 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/ManhNDd/CVE-2019-19204 (opens in a new tab)x_refsource_MISCx_transferred
- FEDORA-2019-d942abd0d4 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [debian-lts-announce] 20191204 [SECURITY] [DLA 2020-1] libonig security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2019-73197ff9a0 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://github.com/tarantula-team/CVE-2019-19204 (opens in a new tab)x_refsource_MISCx_transferred
- USN-4460-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-8836 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2019-19204)Record last updated .