CVE-2019-9735
An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and…
- 6.5MediumCVSS base score
- 3.7%Exploitation in 30 daysEPSS · top 10% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security group rule along with a protocol that doesn't support that option (for example, VRRP), an authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.)
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
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 | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 3.7% · top 10% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIneutronGHSA-9773-3fqg-8w25 (opens in a new tab)
References
10
- 107390 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://launchpad.net/bugs/1818385 (opens in a new tab)x_refsource_MISCx_transferred
- https://security.openstack.org/ossa/OSSA-2019-001.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20190318 [OSSA-2019-001] Unsupported dport option prevents applying security groups in OpenStack Neutron (CVE-2019-9735) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20190319 [SECURITY] [DSA 4409-1] neutron security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-4409 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2019:0916 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0935 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0879 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-4036-1 (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-2019-0090 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-9773-3fqg-8w25 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-9735)Record last updated .