How severe is CVE-2025-52909?

CVE-2025-52909 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-2025-52909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52909?

CVE-2025-52909 primarily affects Samsung Exynos W1000 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-52909?

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.

Does CVE-2025-52909 have an EU (EUVD) identifier?

Yes. CVE-2025-52909 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209267.

When was CVE-2025-52909 published?

CVE-2025-52909 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2025-52909

CVE-2025-52909 is a critical-severity vulnerability in Samsung Exynos W1000 Firmware with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209267
Weakness: CWE-120
Affected product: Samsung Exynos W1000 Firmware
Published: 2026-04-07
Last modified: 2026-06-17

Description

An issue was discovered in the Wi-Fi driver in Samsung Mobile Processor and Wearable Processor Exynos 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. Incorrect Handling of the NL80211 vendor command leads to a buffer overflow via a certain ioctl message, issue 2 of 2.

Frequently asked questions

What is CVE-2025-52909?: An issue was discovered in the Wi-Fi driver in Samsung Mobile Processor and Wearable Processor Exynos 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. Incorrect Handling of the NL80211 vendor command leads to a buffer overflow via a certain ioctl message, issue 2 of 2.
How severe is CVE-2025-52909?: CVE-2025-52909 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-2025-52909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52909?: CVE-2025-52909 primarily affects Samsung Exynos W1000 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-52909?: 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.
Does CVE-2025-52909 have an EU (EUVD) identifier?: Yes. CVE-2025-52909 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209267.
When was CVE-2025-52909 published?: CVE-2025-52909 was published on 2026-04-07 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:o:samsung:exynos_w1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_w920_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_w930_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_850_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1580_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1480_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1330_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:exynos_1280_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Samsung Exynos W1000 Firmware

CVE-2025-54328 — Critical (CVSS 10.0): An issue was discovered in SMS in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080,…
CVE-2025-52908 — Critical (CVSS 9.8): An issue was discovered in the Wi-Fi driver in Samsung Mobile Processor and Wearable Processor Exynos 980, 850, 1280,…
CVE-2025-62818 — Critical (CVSS 9.8): An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100,…
CVE-2025-58349 — Critical (CVSS 9.1): An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080,…
CVE-2025-27807 — Critical (CVSS 9.1): An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100,…
CVE-2025-47202 — Critical (CVSS 9.1): In RRC in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330,…

All CVEs affecting Samsung Exynos W1000 Firmware →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →