How severe is CVE-2025-11339?

CVE-2025-11339 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-11339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-11339?

CVE-2025-11339 affects Dlink Di-7100g C1 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-11339?

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

Does CVE-2025-11339 have an EU (EUVD) identifier?

Yes. CVE-2025-11339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32154.

When was CVE-2025-11339 published?

CVE-2025-11339 was published on 2025-10-06 and last updated on 2026-06-17.

CVE-2025-11339

CVE-2025-11339 is a high-severity vulnerability in Dlink Di-7100g C1 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32154
Weakness: CWE-119
Affected product: Dlink Di-7100g C1 Firmware
Published: 2025-10-06
Last modified: 2026-06-17

Description

A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-11339?: A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-11339?: CVE-2025-11339 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-11339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-11339?: CVE-2025-11339 affects Dlink Di-7100g C1 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-11339?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-11339 have an EU (EUVD) identifier?: Yes. CVE-2025-11339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32154.
When was CVE-2025-11339 published?: CVE-2025-11339 was published on 2025-10-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:di-7100g_c1_firmware:2025-09-28:*:*:*:*:*:*:*

More vulnerabilities in Dlink Di-7100g C1 Firmware

CVE-2025-11338 — High (CVSS 8.8): A flaw has been found in D-Link DI-7100G C1 up to 20250928. This vulnerability affects the function sub_4C0990 of the…
CVE-2026-2194 — Medium (CVSS 6.3): A flaw has been found in D-Link DI-7100G C1 24.04.18D1. This affects the function start_proxy_client_email. Executing a…
CVE-2026-2193 — Medium (CVSS 6.3): A vulnerability was detected in D-Link DI-7100G C1 24.04.18D1. Affected by this issue is the function set_jhttpd_info.…
CVE-2025-11335 — Medium (CVSS 4.7): A weakness has been identified in D-Link DI-7100G C1 up to 20250928. Affected by this vulnerability is the function…

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