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CVE-2017-9492

23
FAUCET Score

CVE-2017-9492 describes a vulnerability in Comcast firmware for specific Cisco DPC3939, DPC3939B, DPC3941T, and Arris TG1682G devices. The flaw stems from the absence of the HTTPOnly flag in Set-Cookie headers for administrative applications. This omission allows remote attackers to access potentially sensitive information through script-based cookie theft. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity and high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
dpc3939-p20-18-v303r20421733-160420a-cmcstCPE matchmatch criteria
cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421733-160420a-cmcst:*:*:*:*:*:*:*
dpc3939-p20-18-v303r20421746-170221a-cmcstCPE matchmatch criteria
cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:*:*:*:*:*:*:*
dpc3939b-v303r204217-150321a-cmcstCPE matchmatch criteria
cpe:2.3:o:cisco:dpc3939b_firmware:dpc3939b-v303r204217-150321a-cmcst:*:*:*:*:*:*:*
dpc3941_2.5s3_prod_seyCPE matchmatch criteria
cpe:2.3:o:cisco:dpc3941t_firmware:dpc3941_2.5s3_prod_sey:*:*:*:*:*:*:*
10.0.132.sip.pc20.ctCPE matchmatch criteria
cpe:2.3:o:commscope:arris_tg1682g_firmware:10.0.132.sip.pc20.ct:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.58%
Probability of exploitation in next 30 days
EPSS Percentile
73.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0158 is in the 55th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryworkaround availablevia nvd_reference
View patch

References

github.com / BastilleResearch/CableTap/blob/master/doc/advisories/bastille-35.improper-cookie-flags.txt
MitigationThird Party Advisory