Session fixation in [UNKNOWN] nss
Priority LOW 29CWE-325Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-384.
Summary
nss before version 3.30 is vulnerable to a remote denial of service during the session handshake when using SessionTicket extension and ECDHE-ECDSA.
Why it matters now
EPSS 0.01399 72nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| [UNKNOWN] | nss | nss 3.30 | — | No fix listed | CNA |
- nss Vendor[UNKNOWN] Affected nss 3.30 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9574
- 2026-10-03 Alias added: GHSA-jq9g-rw6w-4vhv
References
More Mozilla Network Security Services vulnerabilities
- TI-2015-03381 The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server… CVSS 3.1LOW 3.7
- TI-2007-00009 Stack-based buffer overflow in the SSLv2 support in Mozilla Network Security Services… CVSS 2.0MEDIUM 6.8
- TI-2018-08903 A cached side channel attack during handshakes using RSA encryption could allow for the… CVSS 3.0MEDIUM 5.9
- TI-2015-05957 Heap-based buffer overflow in the ASN.1 decoder in Mozilla Network Security Services… CVSS 3.0CRITICAL 9.8
- TI-2004-00763 Heap-based buffer overflow in Netscape Network Security Services (NSS) library allows… CVSS 2.0HIGH 7.5
- TI-2014-01197 Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in… CVSS 2.0HIGH 10.0
Sources
- CVE-2016-9574 · CVE Program
- CVE-2016-9574 · NVD
- FIRST EPSS
- GHSA-jq9g-rw6w-4vhv · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9574 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences