How severe is CVE-2019-20716?

CVE-2019-20716 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-20716 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20716?

CVE-2019-20716 primarily affects Netgear Dgn2200 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20716?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-20716 published?

CVE-2019-20716 was published on 2020-04-16 and last updated on 2026-06-17.

CVE-2019-20716

CVE-2019-20716 is a medium-severity vulnerability in Netgear Dgn2200 Firmware with a CVSS 3.x base score of 6.8. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 5.2
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Netgear Dgn2200 Firmware
Published: 2020-04-16
Last modified: 2026-06-17

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects DGN2200v4 before 1.0.0.110 and DGND2200Bv4 before 1.0.0.109.

Frequently asked questions

What is CVE-2019-20716?: Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects DGN2200v4 before 1.0.0.110 and DGND2200Bv4 before 1.0.0.109.
How severe is CVE-2019-20716?: CVE-2019-20716 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-20716 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20716?: CVE-2019-20716 primarily affects Netgear Dgn2200 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20716?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20716 published?: CVE-2019-20716 was published on 2020-04-16 and last updated on 2026-06-17.

References

https://kb.netgear.com/000061212/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-DGN2200v4-and-DGND2200Bv4-PSV-2018-0241

Affected products (2)

cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:dgnd2200b_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Netgear Dgn2200 Firmware

CVE-2021-38516 — Critical (CVSS 10.0): Certain NETGEAR devices are affected by lack of access control at the function level. This affects D6220 before…
CVE-2019-17373 — Critical (CVSS 9.8): Certain NETGEAR devices allow unauthenticated access to critical .cgi and .htm pages via a substring ending with .jpg,…
CVE-2016-5649 — Critical (CVSS 9.8): A vulnerability is in the 'BSW_cxttongr.htm' page of the Netgear DGN2200, version DGN2200-V1.0.0.50_7.0.50, and…
CVE-2017-6077 — Critical (CVSS 9.8): ping.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute…
CVE-2025-12944 — High (CVSS 8.8): Improper input validation in NETGEAR DGN2200v4 (N300 Wireless ADSL2+ Modem Router) allows attackers with direct network…
CVE-2024-57046 — High (CVSS 8.8): A vulnerability in the Netgear DGN2200 router with firmware version v1.0.0.46 and earlier permits unauthorized…

All CVEs affecting Netgear Dgn2200 Firmware →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →