Is CVE-2017-11757 in the CISA KEV catalog?

No. CVE-2017-11757 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-11757?

CVE-2017-11757 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-11757?

CVE-2017-11757 has an EPSS score of 2.49% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-11757?

No published fix for CVE-2017-11757 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-11757

CRITICALEPSS 83th pctl

9.8

CVSS v3

NVD

Description

Heap-based buffer overflow in Actian Pervasive PSQL v12.10 and Zen v13 allows remote attackers to execute arbitrary code via crafted traffic to TCP port 1583. The overflow occurs after Server-Client encryption-key exchange. The issue results from an integer underflow that leads to a zero-byte allocation. The _srvLnaConnectMP1 function is affected.

CWE-191

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.49%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Exploit1

blogs.securiteam.com

Vendor Advisory1

supportservices.actian.com

Third-Party Advisory1

twitter.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.