Vulnerability · CVE-2016-2177
OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer ov…
Published Jun 20, 2016 · catalog updated Jun 17, 2026 · icewall mcrp
Last checked Nov 7, 2026. A connected source was read within the last 7 days.
Check this week
CVE-2016-2177 is not in CISA KEV. FIRST estimates a 44.51% chance of exploitation in the next 30 days. Check whether you run icewall mcrp.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Critical9.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 44.51%
- Remediation
- Advisory link
- Affected products
- cpe hp/icewall mcrp · cpe hp/icewall sso · cpe hp/icewall sso agent option · cpe openssl/openssl
OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe hp/icewall mcrp3.0
- cpe hp/icewall sso10.0
- cpe hp/icewall sso agent option10.0
- cpe openssl/openssl1.0.1
- cpe openssl/openssl1.0.1a
How to fix CVE-2016-2177
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 3.0 · 4 other packages on the advisory
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2016-2177 is not in CISA KEV. FIRST estimates a 44.51% chance of exploitation in the next 30 days. Check whether you run icewall mcrp.
Which versions are affected?
Compare what you have installed with hp/icewall mcrp 3.0; hp/icewall sso 10.0; hp/icewall sso agent option 10.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-190: Integer Overflow. EPSS 44.51%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jun 20, 2016 · Monitored products — critical
Detected
OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.
Jun 17, 2026 · Monitored products — critical
Updated
OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.
Sources
- CVE.orgVulnerability recordCVE-2016-2177
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2016-2177
30-day exploitation probability 44.51%
first.org - Monitored products — criticalVendor advisoryCVE-2016-2177
OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.
nvd.nist.gov
References
Freshness
Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 7, 2026
- CVE.orgNov 4, 2026
- Monitored products — criticalNov 4, 2026