How severe is CVE-2016-1382?

CVE-2016-1382 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-1382 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1382?

CVE-2016-1382 primarily affects Cisco Web Security Appliance (wsa). In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1382?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-1382 published?

CVE-2016-1382 was published on 2016-05-25 and last updated on 2026-06-17.

CVE-2016-1382

CVE-2016-1382 is a high-severity vulnerability in Cisco Web Security Appliance (wsa) with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Web Security Appliance (wsa)
Published: 2016-05-25
Last modified: 2026-06-17

Description

Cisco AsyncOS before 8.5.3-069 and 8.6 through 8.8 on Web Security Appliance (WSA) devices mishandles memory allocation for HTTP requests, which allows remote attackers to cause a denial of service (proxy-process reload) via a crafted request, aka Bug ID CSCuu02529.

Frequently asked questions

What is CVE-2016-1382?: Cisco AsyncOS before 8.5.3-069 and 8.6 through 8.8 on Web Security Appliance (WSA) devices mishandles memory allocation for HTTP requests, which allows remote attackers to cause a denial of service (proxy-process reload) via a crafted request, aka Bug ID CSCuu02529.
How severe is CVE-2016-1382?: CVE-2016-1382 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-1382 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1382?: CVE-2016-1382 primarily affects Cisco Web Security Appliance (wsa). In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1382?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-1382 published?: CVE-2016-1382 was published on 2016-05-25 and last updated on 2026-06-17.

References

Affected products (27)

cpe:2.3:a:cisco:web_security_appliance_\(wsa\):5.6.0-623:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):6.0.0-000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.1.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.1.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.5.0-000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.5.0-825:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.5.1-000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.5.2-000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.7.0-000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):7.7.1-000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.0-000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.6-078:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.6-119:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.7-142:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.0.8-mr-113:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.5.0-497:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.5.0.000:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.5.1-021:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.5.2-024:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.5.2-027:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_appliance_\(wsa\):8.5.3-055:*:*:*:*:*:*:*

More vulnerabilities in Cisco Web Security Appliance (wsa)

CVE-2016-1383 — High (CVSS 7.5): Memory leak in Cisco AsyncOS through 8.8 on Web Security Appliance (WSA) devices allows remote attackers to cause a…

All CVEs affecting Cisco Web Security Appliance (wsa) →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →