Stack-based buffer overflow in the execvp_nc function in the ov.dll module in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53, when running on Windows, allows remote attackers to execute arbitrary code via a long HTTP request to webappmon.exe.
CVE-2010-2703
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 10.0 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 71.4% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- High exploitation likelihood — EPSS 71%
- Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 10.0(low)
- EG Risk
- 78(Track)EG Risk 78/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity100% × 45%Exploitation71% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 71%
- EPSS %ILE
- 99%
- KEV
- Not listed
Published
July 28, 2010
Last Modified
April 29, 2026
References (24)
- hp-security-alert@hphttp://marc.info/?l=bugtraq&m=127973001009749&w=2
- hp-security-alert@hphttp://osvdb.org/66514
- hp-security-alert@hphttp://secunia.com/advisories/40686
- hp-security-alert@hphttp://securityreason.com/securityalert/8161
- hp-security-alert@hphttp://www.attrition.org/pipermail/vim/2010-July/002374.html
- hp-security-alert@hphttp://www.exploit-db.com/exploits/14916
- hp-security-alert@hphttp://www.securityfocus.com/archive/1/512544/100/0/threaded
- hp-security-alert@hphttp://www.securityfocus.com/archive/1/512552/100/0/threaded
- hp-security-alert@hphttp://www.securityfocus.com/bid/41829
- hp-security-alert@hphttp://www.securitytracker.com/id?1024224
- hp-security-alert@hphttp://www.securitytracker.com/id?1024238
- hp-security-alert@hphttp://www.vupen.com/english/advisories/2010/1866
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=127973001009749&w=2
- af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/66514
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/40686
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 7× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-26 14:40 UTCEPSS rescore
- 2026-08-25 13:43 UTCEPSS rescore
- 2026-08-19 16:58 UTCEPSS rescore
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- 2026-07-26 13:41 UTCEG score recompute▲ 10.00
- 2026-07-23 01:02 UTCEG score recompute
- 2026-07-23 00:39 UTCEG score recompute▼ 6.80
- 2026-07-23 00:06 UTCEG score recompute▲ 6.80
- 2026-07-22 21:45 UTCEG score recompute
- 2026-07-22 14:03 UTCEPSS rescore
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- 2026-06-29 14:02 UTCEPSS rescore
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- 2026-05-31 00:14 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-29 10:50 UTCEG score recompute
- 2026-05-29 10:50 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(3 references)Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-17030✓ verifiedFirst seen Mar 23, 2011
HP Network Node Manager (NMM) - CGI 'webappmon.exe execvp' Remote Buffer Overflow (Metasploit)
Open source ↗ - Exploit-DBEDB-14916✓ verifiedFirst seen Sep 6, 2010
HP OpenView Network Node Manager (OV NNM) - 'webappmon.exe execvp_nc' Remote Code Execution
Open source ↗ - Metasploitexploit/windows/http/hp_nnm_webappmon_execvp✓ verifiedFirst seen Jul 20, 2010
HP OpenView Network Node Manager execvp_nc Buffer Overflow
Open source ↗
Frequently asked(4)
What is CVE-2010-2703?
When was CVE-2010-2703 disclosed?
Is CVE-2010-2703 actively exploited?
How do I remediate CVE-2010-2703?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2010-2703
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