CVE-2015-0962: Barracuda Web Filter 7.x and 8.x before 8.1.0.005, when SSL Inspection is enabled, uses the same root Certific

Routine

MEDIUM 4.3DOWNGRADE

CVE-2015-0962 is a medium-severity flaw (CVSS 4.3) affecting web filter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Barracuda Web Filter 7.x and 8.x before 8.1.0.005, when SSL Inspection is enabled, uses the same root Certification Authority certificate across different customers' installations, which makes it easier for remote attackers to conduct man-in-the-middle attacks against SSL sessions by leveraging the certificate's trust relationship.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-18
Published	2015-05-25
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: barracuda

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-05-25 22:59 UTCPublished CVE record published
2026-06-17 00:21 UTCUpdated Record last modified

barracuda web filter DOWNGRADE

Affected: 7.0 · 7.0.1 · 7.1.0 · 8.0 · 8.0.002 · 8.0.003

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

1. Check installed version

apt-cache policy web-filter || rpm -q web-filter || web-filter --version

2. No fixed release: DOWNGRADE to a release before 7.0 (Debian / Ubuntu)

apt-cache madison web-filter sudo apt install web-filter=<VERSION_BEFORE_7.0> sudo apt-mark hold web-filter

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list web-filter sudo dnf downgrade web-filter-<VERSION_BEFORE_7.0> sudo dnf versionlock add web-filter

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-0962?

web filter: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-0962 being exploited?

CVE-2015-0962 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-0962 affect?

CVE-2015-0962 affects web filter. Severity is medium (CVSS 4.3). Barracuda Web Filter 7.x and 8.x before 8.1.0.005, when SSL Inspection is enabled, uses the same root Certification Authority certificate across different customers' installations, which makes it easier for remote attackers to conduct man-i

How urgent is CVE-2015-0962?

Priority 33/100. No elevated risk signals yet.

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References

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