VulnerabilityModified
CVE-2018-18508
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
MEDIUM 6.5EPSS 1.97%
Does this matter?
Lower severity and a low EPSS score (1.97%). Track it; it rarely justifies an emergency change on its own.
Description
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.97% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- mozilla/network security services · siemens/ruggedcom rox mx5000 firmware · siemens/ruggedcom rox rx1400 firmware · siemens/ruggedcom rox rx1500 firmware · siemens/ruggedcom rox rx1501 firmware · siemens/ruggedcom rox rx1510 firmware · siemens/ruggedcom rox rx1511 firmware · siemens/ruggedcom rox rx1512 firmware · siemens/ruggedcom rox rx5000 firmware
- Source
- security@mozilla.org
EPSS 2.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdfThird Party Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_notesRelease Notes, Vendor Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notesRelease Notes, Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04Third Party Advisory, US Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdfThird Party Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_notesRelease Notes, Vendor Advisory
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notesRelease Notes, Vendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.