CVE-2026-49197
CVE-2026-49197 is a critical-severity vulnerability in Acer Predator Connect W6x 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-287.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v4: 10.0
- EPSS exploit prediction: 0% (25th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-33264
- Weakness: CWE-287
- Affected product: Acer Predator Connect W6x Firmware
- Published:
- Last modified:
Description
Web endpoints intended for the Acer Connect app improperly validate the HTTP Authorization header, failing to block requests when Base64 decoding fails.
Frequently asked questions
- What is CVE-2026-49197?
- Web endpoints intended for the Acer Connect app improperly validate the HTTP Authorization header, failing to block requests when Base64 decoding fails.
- How severe is CVE-2026-49197?
- CVE-2026-49197 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-2026-49197 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-49197?
- CVE-2026-49197 affects Acer Predator Connect W6x Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-49197?
- 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-2026-49197 have an EU (EUVD) identifier?
- Yes. CVE-2026-49197 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33264.
- When was CVE-2026-49197 published?
- CVE-2026-49197 was published on 2026-05-29 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:acer:predator_connect_w6x_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Acer Predator Connect W6x Firmware
- CVE-2026-49199 — Critical (CVSS 9.8): Crafted MQTT messages can trigger command injection, resulting in root-level code execution on the target device.
- CVE-2026-49195 — High (CVSS 8.8): Unauthenticated Debug Service. The /sbin/mtk_dut binary is exposed on TCP port 9000 without authentication, allowing…
- CVE-2026-49196 — High (CVSS 7.2): The Wi-Fi device blocking feature fails to sanitize MAC address input, allowing injection and execution of arbitrary…
- CVE-2026-49198 — Medium (CVSS 4.9): Improper access control in the MQTT broker allows wildcard topic subscriptions, exposing all MQTT traffic to…
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Other CWE-287 (Improper Authentication) vulnerabilities
- CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
- CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
- CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
- CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
- CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…
Browse all CWE-287 (Improper Authentication) vulnerabilities →