CVE-2015-7923: westermo weos Cryptographic Issues
CVSS: 9.3v2.0HighModified
Published 30-01-2016Last modified 06-08-2024
Vulnerability summary
CVE-2015-7923 is a high (CVSS 9.3) Cryptographic Issues vulnerability in westermo weos. EPSS estimates a 1.21% chance of exploitation in the next 30 days, higher than 68% of scored vulnerabilities.
CVSS score
9.3/10
010
High · v2.0 (NVD)EPSS score
1.21%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 30-01-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Westermo WeOS before 4.19.0 uses the same SSL private key across different customers' installations, which makes it easier for man-in-the-middle attackers to defeat cryptographic protection mechanisms by leveraging knowledge of a key.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.0Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HSourcesSingle source
High 9.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
1.21%
Chance of exploitation in the next 30 days
Percentile
68%
Versus all other CVEs
30-day change
0.00 pp
From 1.21% on 22-09-2026
22-09-202622-10-2026
EPSS score1.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Westermo1 product
- weos4.18.0
1 vendor · 1 product
References
1 links- ics-cert.us-cert.gov/advisories/ICSA-16-028-01X Refsource MISCThird Party AdvisoryUS Government Resource