Back
CVE-2019-5436
A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.
High7.8EPSS 49.7%
- Published
- Updated
- Reserved
- Assigned by
- hackerone
Description
A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 49.7% · top 1.1% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
References (15)
- openSUSE-SU-2019:1492 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:1508 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2019-697de0501f (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [oss-security] 20190911 [SECURITY ADVISORY] curl: TFTP small blocksize heap buffer overflow (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- DSA-4633 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20200225 [SECURITY] [DSA 4633-1] curl security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- GLSA-202003-29 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://www.oracle.com/security-alerts/cpuapr2020.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/security-alerts/cpuoct2020.html (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20190606-0004/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://curl.haxx.se/docs/CVE-2019-5436.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.f5.com/csp/article/K55133295 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.f5.com/csp/article/K55133295?utm_source=f5support&%3Butm_medium=RSS (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-5436)Record last updated .