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Medium 5.0Published Mar 3, 2003

CVE-2003-0078ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing…

Updated under an hour ago ()

Does this affect you?

It affects openssl and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the "Vaudenay timing attack."

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CVSS
5.0 MEDIUM (v2.0, NVD)AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE)
CWE-203
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Modified
Record last updated
Jun 16, 2026
First seen by InfoSec Signals
Nov 1, 2026

Affected products

Affected products
openssl openssl
openssl:openssl
before 0.9.6i; 0.9.6i; 0.9.7; 0.9.7; 0.9.7; 0.9.7; 0.9.7; 0.9.7; and 1 more ranges
NVD
freebsd freebsd
freebsd:freebsd
4.2; 4.3; 4.4; 4.5; 4.6; 4.7; 5.0
NVD
openbsd openbsd
openbsd:openbsd
3.1; 3.2
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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