How severe is CVE-2014-7859?

CVE-2014-7859 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2014-7859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-7859?

CVE-2014-7859 primarily affects D-link Dns-322l Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-7859?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2014-7859 published?

CVE-2014-7859 was published on 2017-08-25 and last updated on 2026-06-17.

CVE-2014-7859

CVE-2014-7859 is a critical-severity vulnerability in D-link Dns-322l Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: D-link Dns-322l Firmware
Published: 2017-08-25
Last modified: 2026-06-17

Description

Stack-based buffer overflow in login_mgr.cgi in D-Link firmware DNR-320L and DNS-320LW before 1.04b08, DNR-322L before 2.10 build 03, DNR-326 before 2.10 build 03, and DNS-327L before 1.04b01 allows remote attackers to execute arbitrary code by crafting malformed "Host" and "Referer" header values.

Frequently asked questions

What is CVE-2014-7859?: Stack-based buffer overflow in login_mgr.cgi in D-Link firmware DNR-320L and DNS-320LW before 1.04b08, DNR-322L before 2.10 build 03, DNR-326 before 2.10 build 03, and DNS-327L before 1.04b01 allows remote attackers to execute arbitrary code by crafting malformed "Host" and "Referer" header values.
How severe is CVE-2014-7859?: CVE-2014-7859 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2014-7859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-7859?: CVE-2014-7859 primarily affects D-link Dns-322l Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-7859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2014-7859 published?: CVE-2014-7859 was published on 2017-08-25 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:d-link:dns-322l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dns-320lw_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dnr-326_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dns-327l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dnr-320l_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in D-link Dns-322l Firmware

CVE-2014-7857 — Critical (CVSS 9.8): D-Link DNS-320L firmware before 1.04b12, DNS-327L before 1.03b04 Build0119, DNR-326 1.40b03, DNS-320B 1.02b01, DNS-345…

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