How severe is CVE-2011-4881?

CVE-2011-4881 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-4881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4881?

CVE-2011-4881 primarily affects Atvise Webmi2ads. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4881?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4881 published?

CVE-2011-4881 was published on 2012-04-13 and last updated on 2026-06-16.

CVE-2011-4881

CVE-2011-4881 is a medium-severity vulnerability in Atvise Webmi2ads with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atvise Webmi2ads
Published: 2012-04-13
Last modified: 2026-06-16

Description

The web server in Certec atvise webMI2ADS (aka webMI) before 2.0.2 does not properly check return values from functions, which allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted HTTP request.

Frequently asked questions

What is CVE-2011-4881?: The web server in Certec atvise webMI2ADS (aka webMI) before 2.0.2 does not properly check return values from functions, which allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted HTTP request.
How severe is CVE-2011-4881?: CVE-2011-4881 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-4881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4881?: CVE-2011-4881 primarily affects Atvise Webmi2ads. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4881?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4881 published?: CVE-2011-4881 was published on 2012-04-13 and last updated on 2026-06-16.

References

http://www.us-cert.gov/control_systems/pdf/ICSA-12-102-01.pdf

Affected products (3)

cpe:2.3:a:atvise:webmi2ads:*:*:*:*:*:*:*:*
cpe:2.3:a:atvise:webmi2ads:1.0:*:*:*:*:*:*:*
cpe:2.3:a:atvise:webmi2ads:2.0:*:*:*:*:*:*:*

More vulnerabilities in Atvise Webmi2ads

CVE-2011-4883 — Medium (CVSS 5.0): The web server in Certec atvise webMI2ADS (aka webMI) before 2.0.2 does not properly validate values in HTTP requests,…
CVE-2011-4882 — Medium (CVSS 5.0): The web server in Certec atvise webMI2ADS (aka webMI) before 2.0.2 allows remote attackers to cause a denial of service…
CVE-2011-4880 — Medium (CVSS 5.0): Directory traversal vulnerability in the web server in Certec atvise webMI2ADS (aka webMI) before 2.0.2 allows remote…

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