CVE-2017-9485: cisco dpc3939_firmware
CVSS: 7.5v3.0HighModified
Published 31-07-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-9485 is a high (CVSS 7.5) vulnerability in cisco dpc3939_firmware. EPSS estimates a 1.17% chance of exploitation in the next 30 days, higher than 67.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
1.17%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 31-07-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to write arbitrary data to a known /var/tmp/sess_* pathname by leveraging the device's operation in UI dev mode.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.17%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
+0.02 pp
From 1.15% on 21-09-2026
21-09-202621-10-2026
EPSS score1.17%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundCabletap
Maturity: poc
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Cisco1 product
- dpc3939_firmwaredpc3939-p20-18-v303r20421746-170221a-cmcst
1 vendor · 1 product
References
1 links- github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-28.session-cookie-write.txtX Refsource MISCExploitThird Party Advisory