CVE-2008-3172: Opera allows web sites to set cookies for country-specific top-level domains that have DNS A records, such as

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MEDIUM 6.8MITIGATE

CVE-2008-3172 is a medium-severity flaw (CVSS 6.8) affecting opera. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Opera allows web sites to set cookies for country-specific top-level domains that have DNS A records, such as co.tv, which could allow remote attackers to perform a session fixation attack and hijack a user's HTTP session, aka "Cross-Site Cooking."

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-264
Published	2008-07-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: opera

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2008-07-14 23:41 UTCPublished CVE record published
2026-06-16 22:55 UTCUpdated Record last modified

opera opera MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opera || rpm -q opera || opera --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2008-3172?

opera: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-3172 being exploited?

CVE-2008-3172 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-2008-3172 affect?

CVE-2008-3172 affects opera. Severity is medium (CVSS 6.8). Opera allows web sites to set cookies for country-specific top-level domains that have DNS A records, such as co.tv, which could allow remote attackers to perform a session fixation attack and hijack a user's HTTP session, aka "Cross-Site C

How urgent is CVE-2008-3172?

Priority 41/100. No elevated risk signals yet.

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References

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