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CVE-2014-7859

34
FAUCET Score

CVE-2014-7859 is a critical stack-based buffer overflow vulnerability affecting D-Link DNR-320L, DNS-320LW, DNR-322L, DNR-326, and DNS-327L devices running specific older firmware versions. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending crafted "Host" and "Referer" HTTP header values. With a CVSS score of 9.8, it poses a severe risk of complete compromise (confidentiality, integrity, and availability). While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.00b07CPE matchmatch criteria
cpe:2.3:o:d-link:dns-322l_firmware:*:*:*:*:*:*:*:*
<= 1.03b04CPE matchmatch criteria
cpe:2.3:o:d-link:dns-320lw_firmware:*:*:*:*:*:*:*:*
<= 1.40b03CPE matchmatch criteria
cpe:2.3:o:d-link:dnr-326_firmware:*:*:*:*:*:*:*:*
<= 1.02CPE matchmatch criteria
cpe:2.3:o:d-link:dns-327l_firmware:*:*:*:*:*:*:*:*
<= 1.03b04CPE matchmatch criteria
cpe:2.3:o:d-link:dnr-320l_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
20.88%
Probability of exploitation in next 30 days
EPSS Percentile
97.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.2088 is in the 94th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/132075/D-Link-Bypass-Buffer-Overflow.html
Third Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2015/May/125
Mailing ListThird Party AdvisoryVDB Entry
search-lab.hu / media/D-Link_Security_advisory_3_0_public.pdf
Technical DescriptionThird Party Advisory
securityfocus.com / archive/1/535626/100/200/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / bid/74878
Third Party AdvisoryVDB Entry