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CVE-2019-13263

27
FAUCET Score

CVE-2019-13263 describes an Insufficient Compartmentalization vulnerability in D-Link DIR-825AC G1 devices, allowing data exfiltration between host and guest networks. An attacker on the guest network can encode data into a DHCP Request's Transaction ID, which the router erroneously echoes to the host network in a NAK response. This vulnerability carries a CVSS score of 8.8 (High) due to its low attack complexity (AV:A/AC:L/PR:N/UI:N) and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). While not listed in CISA's KEV catalog and lacking public exploit code, it has garnered some community discussion and media coverage, indicating awareness of its potential.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:dlink:dir-825\/ac_g1_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 78th percentile among its peer group of 1,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

orenlab.sise.bgu.ac.il / publications/CrossRouter
ExploitThird Party Advisory
usenix.org / system/files/woot19-paper_ovadia.pdf
Third Party Advisory