How severe is CVE-2009-2060?

CVE-2009-2060 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2009-2060 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2060?

CVE-2009-2060 primarily affects Google Chrome. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2060?

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

When was CVE-2009-2060 published?

CVE-2009-2060 was published on 2009-06-15 and last updated on 2026-06-16.

CVE-2009-2060

CVE-2009-2060 is a medium-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 5.8. 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-287.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Google Chrome
Published: 2009-06-15
Last modified: 2026-06-16

Description

src/net/http/http_transaction_winhttp.cc in Google Chrome before 1.0.154.53 uses the HTTP Host header to determine the context of a document provided in a (1) 4xx or (2) 5xx CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by modifying this CONNECT response, aka an "SSL tampering" attack.

Frequently asked questions

What is CVE-2009-2060?: src/net/http/http_transaction_winhttp.cc in Google Chrome before 1.0.154.53 uses the HTTP Host header to determine the context of a document provided in a (1) 4xx or (2) 5xx CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by modifying this CONNECT response, aka an "SSL tampering" attack.
How severe is CVE-2009-2060?: CVE-2009-2060 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2009-2060 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2060?: CVE-2009-2060 primarily affects Google Chrome. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2060?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2060 published?: CVE-2009-2060 was published on 2009-06-15 and last updated on 2026-06-16.

References

Affected products (16)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.2.149.29:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.2.149.30:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.2.152.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.2.153.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.3.154.0:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.3.154.3:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.4.154.18:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.4.154.22:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.4.154.31:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.4.154.33:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.36:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.39:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.42:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.43:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.46:*:*:*:*:*:*:*

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