HOMEVULNERABILITIESCVE-2026-35558
HIGH

CVE-2026-35558

CWE-77Published: April 3, 2026· Updated: Apr 7, 2026

7.8
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.1th

Official Description

Improper neutralization of special elements in the authentication components in Amazon Athena ODBC driver before 2.1.0.0 might allow a threat actor to execute arbitrary code or redirect authentication flows by using specially crafted connection parameters that are processed by the driver during user-initiated authentication.

To remediate this issue, users should upgrade to version 2.1.0.0.

NVD Source

Technical Analysis

CVE-2026-35558 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

All References (6)

Quick Facts

CVE IDCVE-2026-35558
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-77
CISA KEVNo
EPSS (30d)0.04%
PublishedApr 3, 2026

Related CVEs (CWE-77)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-35558 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.